Can Angelfish Live With Goldfish?

Can Angelfish Live With Goldfish
Can Angelfish Live With Goldfish

Two of the most common fish species found in home aquariums are angelfish and goldfish. 

Naturally, people expect that they can live in the same tank. But before trying anything fancy, it would be a good idea to have all the relevant information to make the right decision.

In this article,  we’ll answer the question: can angelfish live with goldfish?Let’s find out. 

Can Angelfish Live With Goldfish?

The simple answer is no, Goldfish and Angelfish are two different types of fish that cannot live together in the same tank because they need totally opposite environments to thrive. Goldfish originate from more cold climates while Angels come from warmer water, which means their personalities will be very hard for one another to tolerate as well!

Let’s a closer look reveals why this is a bad idea. 


Goldfish and angelfish thrive in different temperatures. Goldfish are more at home in cold water conditions while angelfish, being a tropical fish, prefers warmer waters.

Understandably, it’s impossible to maintain contrasting temperatures in the same tank. While goldfish do well in temperatures ranging between 62 and 72 degrees Fahrenheit, angelfish can only live when the aquarium temperature is above 75 degrees Fahrenheit.

Failing to provide proper temperature conditions for either species will lead to several health issues, including sickness, aggressive behavior, lack of appetite, or even death.


Angelfish and goldfish have many of the same dietary requirements, they’re both omnivores, but angelfish need more protein than the average goldfish does!

They can eat the same things, including mosquito larvae, bloodworms, and brine shrimp. Perfectly cut-up vegetables such as mustard greens or collards also work well if fed to goldfish in higher quantities.

Breeding Issues

You need to have a clear knowledge of the breeding habits of both angelfish and goldfish. During the spawning phase, fish are highly sensitive, and a crowded tank may lead to stress.

Everything from the water conditions to the room’s atmosphere must be ideal, ensuring that they can breed and take care of the eggs. Fish are easily spooked, and even sudden movements might endanger reproduction.

Moreover, angelfish are notorious for eating their eggs. It takes the male and female fish several spawning cycles before they become devoted parents.

Unsurprisingly, if the goldfish lay eggs in the same tank, there’s a high chance that the angelfish might gobble them up.

Tank Size

Although angelfish aren’t very big, goldfish can grow to several times the size of their freshwater counterparts. While you can keep one angelfish in 4 gallons of water, even a baby goldfish needs at least 5 gallons of water.

As they continue to grow, Goldfish require 10 gallons of water, while fully grown goldfish need 25-30 gallons of water. Understandably, it isn’t easy to have a big enough tank to accommodate both species.

Keeping angelfish and goldfish in a smaller tank will lead to health issues, disease outbreaks, and even death. So, we suggest that you avoid overcrowding.

On the other hand, Goldfish, like most fish prefer longer tanks because it gives them more swimming room, however, angelfish need tall tanks due to their deep bodies.

pH Level

An important factor why angelfish and goldfish can’t live together is that they need different pH levels to survive. Being more sensitive, goldfish do better when the pH value is between 7.2 and 7.6.

In contrast, angelfish are resilient and can survive in conditions with a pH value between 6.5 and 7.1. In fact, 6.8 is the ideal pH level for their breeding cycle.

Long story short, there’s no way for you to maintain different pH levels in the same tank. Any change to the pH value severely affects both angelfish and goldfish, leading to health issues, among other things.

Tank Maintenance & Cleaning

Goldfish produce a lot of waste, meaning it’s important to change the water regularly, and they need good filtration system. In comparison, angelfish are low-maintenance, but they have their perks as well.

It’s essential to keep your fish healthy, as they get stressed very easily, and maintaining a clean tank with fresh water should be your priority. Failing to do so might lead to high ammonia level, shocking behavioral changes, causing them to turn on each other.

Angelfish prefer serene planted tanks while goldfish are not the best tank mates for plants. In fact, they may kill most of them! Goldfish should be kept in a species only setup to avoid any damage on their behalf and out of consideration for those who might want an aquarium with live plants.


It is really not recommended that keeping angelfish and goldfish in the same tank. Looking after fish requires a lot of dedication, and it’s best not to have two different species with varying needs living in the same tank.

Instead, I’d recommend keeping them separately, as that way you can give each of them the specific conditions they need.

Happy fish keeping!

Gabriel R

Gabriel R

Welcome to Aquarium Fish City(AFC). I’m Gabriel and I have been keeping fish for almost fifteen years. My father was a huge fan of tropical fish and our childhood home had a huge aquarium which he tended and kept hundreds of species of fish over the years. I was always fascinated by our fish tank and would spend hours staring at the fish. They seemed to all have different personalities and would interact differently with one another. Here, you can find out everything you need to know about keeping fish and aquarium maintenance.

Gold Nugget Pleco 101: Care, Tank Mates, Size & More!

Gold Nugget Pleco care
Gold Nugget Pleco care

Known for their impressive size and utterly stunning beauty, the Gold Nugget Pleco has become one of the most popular freshwater fish in the world in recent years. Check out some photos or videos of these brilliant beauties in an aquarium. It won’t be difficult to see why more and more people are opting to add them to their aquarium.

Are Gold Nugget Plecos A Good Idea For My Aquarium?

Of course, while these freshwater fish are fairly straightforward in how to care for them, there are still a number of things you will want to keep in mind. From making sure they have plenty of room in the aquarium, to ensuring you are feeding them exactly what they need to be happy, there are a few simple measures you will want to keep in mind

Typical Behavior And Temperament

Before we get to the best tankmates for your Gold Nugget Plecos, we should discuss some of the facets of the typical personality you can find with Gold Nugget Plecos. This doesn’t get into anything too elaborate or complex, but newcomers should still make it a point to familiarize themselves with what they can expect.

One thing people love about this particular type of fish is their overall temperament. They are by and large very peaceful, very calm fish. They generally do not like to bother others, nor do they wish to be bothered themselves. They are not known for picking fights.

They prefer to mind their own business, at the end of the day. They will spend most of their time along the bottom of the tank, either hiding, looking for food, or simply resting. They will come to the surface of the tank sometimes, but this is generally done in the interest of, you guessed it, finding food.

Typically, these fish will get in the most activity during the evenings. While not particularly concerned with other types of fish in the tank, there is the potential for some issues with another catfish. This can be avoided by making sure you have purchased a sufficiently large enough tank to accommodate everyone. Lots of hiding places will also help you to avoid any potential issues.

If you do run into problems between a Gold Nugget Pleco and another catfish, your best bet will probably be to separate them.

Getting Started: Gold Nugget Pleco Basics

Native to Brazil, the Gold Nugget Pleco is among the most popular examples of the Pleco fish. Also known to some as the Golden Nugget Pleco, there are others still who refer to them simply as L18 or L-018.

If you haven’t heard of these fish before today, relax! While growing in popularity among aquarium enthusiasts, they are relative newcomers to being kept in captivity at all. In fact, the earliest we can trace the first instances of them being kept is somewhere in the 1980s. Thankfully, if you have ever interacted with Plecos before, you will find many of the same rules and facts apply here.

While perhaps not quite as flashy as some freshwater fish, Gold Nugget Plecos still enthrall their owners for having unique color patterns, a beautiful style that makes them the most distinctive examples of their type. They also have wonderful personalities, and are fairly hardy fish overall.

As far as we’re concerned, they are among the most stunning freshwater fish in all the world. Black in appearance, and covered with yellow spots, these fish can live for at least five years with good care.

With optimal attention, they can live for at least a few more years than five.

To that end, let’s take a closer look at the essentials of Gold Nugget Pleco care.

Gold Nugget Pleco Care

As stated earlier, learning how to care for a Gold Nugget Pleco is not particularly difficult. If you have any experience with freshwater fish, then you won’t have too much trouble here.

Peaceful by nature, and generally in a mode of keeping to themselves, they can be a good choice for any experience level.

What Tank Size Do They Need?

Gold nugget plecos can grow to be quite large. Their full length in adulthood can be anywhere between seven and ten full inches. Their bodies are widest around their eyes, and their decidedly large pectoral fins are noted for pointing backwards. Given their size, you can imagine the tank you will need for them will need to be on the large side.

Tank size is the first aspect of Gold Nugget Pleco care we’re going to cover in detail. As long as you understand the best tanks for gold nugget plecos are the larger ones, you should be fine.

Anything less than 50 gallons for a gold nugget pleco is unacceptable. These are large freshwater fish, so they need plenty of room in which to move around comfortably.

You will probably want to go a bit larger than the minimum. Not just in terms of comfort, but also in terms of how many you want to keep, whether or not there will be any other tankmates around, and making sure there is space enough for accessories and other items. Some would suggest going for a 100-gallon tank. Others will suggest tanks in the 150-gallon or even 200-gallon range.

To be clear, if you’re only planning to keep a single Gold Nugget Pleco, you do NOT need a 200-gallon aquarium! Ultimately, you need to judge the size you will require by how many freshwater fish you plan to keep overall.

Perfect Water Condition

There is a nice arena of comfort to work with, when it comes to setting the best tank conditions for your Gold Nugget Plecos. Newcomers should keep an extra eye on things, particularly in the beginning, and make adjustments as needed.

Here are the basic water parameters for the tank that you should keep in mind:

  • Water temperature: This will need to be anywhere between 73- and 79-degrees Fahrenheit. This is also a range that allows for a number of other freshwater fish, if that interests you.
  • pH levels: This should fall somewhere between 6.5 and 7.5. The sweet spot for Gold Nugget Plecos is widely considered to be a firm 7.
  • Water hardness: Here, we see why the Gold Nugget Plecos are relatively hardy for their type. This number can fall comfortably anywhere between 5 and 15 dH.

Make sure you are testing your water on a regular basis, in order to ensure you are maintaining these levels as needed. This is particularly true in the beginning. Thankfully, when it comes to the best water testing kits for aquariums, you aren’t lacking in choices.

When you buy your gold nugget pleco, test the water once a day or so. Give them time to acclimate, but be ready to make changes to help them hit their comfort zone.

Accessories And Equipment

Another thing to keep in mind with your Gold Nugget Pleco is that they need the best possible quality of water, as well. Partial water changes are best. This should be done on a consistent routine. A reliable schedule for care and maintenance is best with Plecos in general.

In terms of filling the tank with everything the Gold Nugget Pleco needs to be happy, we’re going to start with making sure you have the best possible substrate.

Remember that these fish like to spend most of their time along the bottom of the aquarium. It is for this reason that they need something that is soft. Sand is a good place to begin, since that replicates their natural atmosphere the most accurately.

Rough substrate can be problematic. It can stress them out, while also potentially leaving them open to injury and/or infection.

When it comes to plants and other accessories, you don’t need to do anything too extraordinary. Most of what holds true for other freshwater fish will apply to Gold Nugget Plecos.

Good plant life, nonetheless, is going to be essential. This will keep too much light from getting to the bottom of the tank. The best plants for Gold Nugget Plecos can also add to the overall good conditions of your aquarium. For one thing, plant life means they will have plenty of good hiding places. This is something they really like!

If you are new to all of this, consider this list of great live plant choices for freshwater aquariums. The focus is on options for beginners, but just about any tank can take advantage of what’s listed here.

For hiding places, as well as for its potential to create a nice snack for your Gold Nugget Plecos in the form of algae, caves, rocks, and driftwood are all great ideas. Don’t overfill the tank with stuff, and don’t be afraid to change things up once in a while.

As long as there’s a suitable amount of darkness, combined with lots of nice hiding spots, your Gold Nugget Pleco will be very pleased indeed.

Food & Diet

Diet and the best foods to feed Gold Nugget Plecos is one of the most straightforward aspects of their care. Not only are they omnivores, but they also have a habit of not being particularly fussy about what they eat. Even so, in the interest of good health and other considerations, we still want to be sure you are feeding them the very best foods and snacks possible.

Routine is once again important here. You should make it a point to feed the Gold Nugget Plecos on a regular schedule. While they simply love snacking on algae, and some of our decoration suggestions are going to give them exactly that, you still want to be sure your diet is focusing on getting them plenty of protein.

What kind of protein do Gold Nugget Plecos like to eat? Sinking pellets are a great way to supplement what they’re going to get from the natural surroundings of the tank. For treats, steamed veggies like cucumber and cabbage can both be great suggestions for giving them a healthy treat.

Some fresh meat is also a good way to give your Gold Nugget Pleco the best possible degree of care and attention. Tubifex worms are considered to be one of the most popular treats for Gold Nugget Plecos. Bloodworms can also be a wonderful treat. Both should only be given on an occasional basis.

It is important to avoid overfeeding them. The treats we mentioned need only be administered to them every other day, or perhaps every couple of days. They should be getting what they need from algae, and you shouldn’t need to give them more than 1-2 grams of food once per day. If you miss a day altogether, that shouldn’t be an issue.

Tank Mates

Overall, it will probably be in your best interest to just avoid other Plecos and catfish in general. If you are serious about having more than one, you will absolutely need to get a tank that will accommodate everyone. This will probably mean getting a tank that is at least 100 gallons, if not bigger.

Outside of Plecos and other examples of catfish, there are actually tons of appealing possibilities for tankmates and a very peaceful atmosphere.

The Neon Tetra and Ember Tetras are both great examples of tankmates for Gold Nugget Plecos. Pearl Gourami and Honey Gourami fish are two more possibilities that you can explore. The Celestial Pearl Danio is yet another example.

There are quite a few possible tankmates that you can research in greater detail. Start with the suggestions above, but don’t be afraid to do some research on other possible tankmates.


At this point, you can decide in no uncertain terms whether the Gold Nugget Pleco is going to be a good addition to your home. People love them, and it is easy to see why!

Gabriel R

Gabriel R

Welcome to Aquarium Fish City(AFC). I’m Gabriel and I have been keeping fish for almost fifteen years. My father was a huge fan of tropical fish and our childhood home had a huge aquarium which he tended and kept hundreds of species of fish over the years. I was always fascinated by our fish tank and would spend hours staring at the fish. They seemed to all have different personalities and would interact differently with one another. Here, you can find out everything you need to know about keeping fish and aquarium maintenance.

Do Betta Fish Need Air Pump? A Breakdown

Do Bettas Need Air Pumps
Do Bettas Need Air Pumps

An air pump is a pretty simple addition to just about any aquarium. They essentially work at bubbling air all throughout your tank. There are a number of different fish which can benefit from the presence of such a device. However, if you’re new to keeping betta fish, you may be wondering do betta fish need air pump?

As you’re going to find out, there are several different components to this question that we need to look at. In a word, the answer is probably no, but you may find an air pump is necessary in your situation.

Let’s break this subject down point by point.

Do Betta Fish Need Air Pump?

If we focus specifically on the word “Need”, the answer is simple enough. No, they don’t need an air pump, in the sense that some fish need one to tank properly circulated. They move oxygenated water down to the bottom of the tank, while simultaneously moving fresh water to the top of your tank to become oxygenated.

Simple right? You can begin to see the value of this product for the fish in your aquarium.

However, this doesn’t translate to necessarily needing one for bettas. While the bubbles create a surface movement that in turns moves along this oxygenation process, bettas do not need the extra agitation. A simple filter in the tank will accomplish what your bettas need to be happy. This also takes into their own movement.

An air pump is mostly going to be useless, as far as your bettas are concerned. There are exceptions to this rule, which we are going to cover shortly. For now, let’s explain why bettas are different from other fish, in terms of whether or not you need an air pump for the tank.

Can Air Pumps Cause Problems For Bettas?

The air pump can actually create too much movement in the water. This can cause your bettas to become stressed out, which can lead to other health issues, including poor appetite and agitation. You obviously don’t want those things.

The other issue is that they just don’t really need it. The purpose of the air pump is to get oxygen to fish that prefer to swim along the bottom of your tank. Bettas traditionally spend a fair amount of their day-to-day existence swimming close to the surface of the tank. This allows them to get all of the air they need.

At the same time, there are in fact instances in which an air pump can be very helpful indeed for your betta fish. We’re going to take a look at when you may want to consider one.

When Will My Betta Need An Air Pump?

The fact that bettas do not generally need an air pump is not the end of the matter. Let’s take a look at some of the situations in which it may indeed be warranted on your part:


If your betta is taking medicine, then it might be a good idea to get an air pump. This is done to make up for the fact that many of the top betta medications can eat up the oxygen that is normally in the tank. In fact, unchecked, certain meds for a betta can cause them to suffocate, unable to get the oxygen they need. An air pump covers the gap nicely.

Special Circumstances

There are also situations in which an air pump can prove you with an added level of protection for your betta, in the event of something like a power outage. Remember that air pumps are available in battery-powered form. If the electricity goes out, and you are unsure as to when it might come back on.


As long as the air pump isn’t causing actual agitation with your betta, the odds are pretty good that it will actually enjoy having the bubbles it produces around. Again, provided, it doesn’t stress them out, their other likely response will be to play with it. Anything that gets your bettas playing, while keeping them thoroughly entertained, can prove to be a really good idea.

These are just a few of the reasons to keep in mind. At the same time, we have to reiterate that with the exception of the medication reason, none of these scenarios are a “must.”

Okay, Okay, Should I Buy An Air Pump For My Betta?

Our advice would be to consider at least purchasing one of the top air pumps for fish tanks that are currently available. Why? In a nutshell, we aren’t talking about a particularly expensive piece of equipment. This is something you can buy, and set aside for any of the scenarios that we listed above. If you never have to use the air pump, then you really won’t be losing anything.

If there is in fact an emergency, such as medication, or the power going out, you are going to be glad you have the air pump on hand.

Having said all of this, definitely keep an eye on your bettas, if you happen to add an air pump at any point. Pay attention to their behavior. If they start to get stressed out, or if something like their appetite seems to be taking a turn for the worse, you should almost certainly have the air pump removed ASAP.

Lastly, don’t forget that air pumps are NOT the same as a filter! This is a common mistake that some fish owners make, and the consequences can be problematic. Especially when you understand that an air pump is not cleaning the tank as it works. It is simply helping to oxygenate the water by agitating it.

To put it one way: You don’t need an air pump. You will definitely need a filter.

We hope this clears the matter up. If you still aren’t sure if an air pump is right for your bettas, consider talking to your vet about the matter.

Gabriel R

Gabriel R

Welcome to Aquarium Fish City(AFC). I’m Gabriel and I have been keeping fish for almost fifteen years. My father was a huge fan of tropical fish and our childhood home had a huge aquarium which he tended and kept hundreds of species of fish over the years. I was always fascinated by our fish tank and would spend hours staring at the fish. They seemed to all have different personalities and would interact differently with one another. Here, you can find out everything you need to know about keeping fish and aquarium maintenance.

Betta Fish Fin Loss 101: How To Protect Your Bettas

Betta Fish Fin Loss
Betta Fish Fin Loss

Is betta fish fin loss something to worry about? Should you immediately panic, as you begin to notice the most common signs of betta fish fin loss or rot? In many cases, yes, fin loss is something that should be treated very seriously. However, in other situations, it actually isn’t that big of a deal.

What Does Fin Loss Really Mean For Bettas?

Also known by such names as tail rot, fin rot, or even fin melt, fin loss in betta fish is fairly easy to notice. You may one day suddenly notice that your betta’s fins appear frayed, or that it even appears as though the fin is missing pieces. You may just notice the color of the betta fin, one of their most beloved physical features, is starting to fade a little bit.

What does all of this mean? Diagnosing fin loss in bettas can be frustrating. This is due to the fairly long list of potential culprits. Further complicating the issue of fin loss diagnosis and treatment is the fact that fin rot and fin loss are NOT the same thing. While the names may be interchangeable to sum, it is key to remember that we are actually talking about two different things.

We’re going to cover these differences in this comprehensive look at betta fish fin loss. We will also be taking a look at common causes of fin loss, when betta fish fin loss requires treatment, and what you can do to keep your betta safe and happy.

What Causes Betta Fish To Experience Fin Loss?

If you notice that your betta fish is experiencing the signs of fin loss, remember that your first move should not be to look for treatment options. Until you know exactly what causes fin loss in betta fish, your treatment choice could prove to be decidedly hit or miss, with missing being the more likely of the two.

When it comes to the main causes of fin loss for bettas, there are a few common possibilities you need to keep in mind:

Tank decorations

Believe it or not, but something in your aquarium can be causing the damage, and you wouldn’t even necessarily know it! Obviously, we don’t mean to hurt our bettas. However, some decorations feature edges that are much too sharp. Given that bettas love to swim around, certain plants and toys can have poking components that can get snagged on their tails. This can cause varying degrees of damage, particularly over time.

Biting its own tail

This may sound ridiculous, but it absolutely possible. Stress and/or boredom are the two most common causes for this behavior. If you notice your betta engaging in tail biting behavior, there are several potential causes you will need to explore.

Problems with other fish

While betta fish can indeed get along with other types of fish, even other bettas, they are still well-known for their potential to run into problems with tankmates. For example, fish who are both smaller and faster than your betta might be bullying it. This can lead to your betta experiencing damage across its fin, as the other fish might be nipping as they swim past.

These are the three most common causes of fin loss in betta fish.

It is also possible that your betta is suffering from fin rot, which in of itself can lead to fin loss. This is a good point to get into why it’s important to know the differences between fin loss and fin rot in betta fish.

What Are The Key Differences Between Betta Fin Loss And Fin Rot?

The biggest significance difference between fin loss and fin rot? One is an injury caused by one factor or another. The other is a bacterial infection that can give your betta a host of issues.

In other words:

  • Fin rot in betta fish can lead to fin loss.
  • The presence of fin loss does not mean your betta definitely has fin rot.

Fin loss comes with a list of potential treatments. The challenge on your end is to make sure the treatment matches the issue. For example, if the problem is simply that another fish is bothering your betta, you don’t need to explore the treatment choices associated with fin rot. You simply need to move the offending fish.

What Exactly Causes Betta Fish Fin Rot

What Exactly Causes Betta Fish Fin Loss?

Fin loss involves physical tearing. Fin rot will be noticeable in your betta by several different symptoms:

  • The edges of the fins have changed color, resembling something that is more black or brown in appearance.
  • The edges of your betta’s fins are going to appear to be very frayed, worn-down.
  • Look to the base of the fin in your betta. Does it appear to be inflamed? This is one of the most common fin rot causes to watch out for.
  • The fin may begin to fall off, sometimes in very large pieces. This is where fin loss and fin rot intersect. Again, they are not the same thing.
  • In addition to damage to the fin, you should also look for the appearance of whiteish spots. This could mean your betta fish is dealing with a condition known as ICH.

As you can see, fin rot is definitely something that should be taken seriously. If you notice any of the symptoms mentioned above, take steps to deal with fin rot as quickly and effectively as possible.

What Are The Best Ways To Treat Fin Rot In Bettas?

While we can’t take you through everything you need to do about fin rot and bettas (see above), we’ve covered some basic fin rot care tips for your betta fish below:

  • Make sure the water in the tank is consistently being changed.
  • You may want to add aquarium salt to the tank, in conjunction with keeping the water in the tank clean and filtered. This is going to depend on the severity of the fin rot.
  • In certain situations, particularly at the occasional advice of a vet, you can consider the notion of medication. Make sure to follow all directions associated with the prescription.

As important as betta fish fin rot is, it isn’t the main reason why we’re here. Let’s get back to fin loss specifically with a closer look at some of the different ways you can treat and prevent fin loss.

The Best Ways To Treat And Prevent Fin Loss In Betta Fish

At the end of the day, simply paying close attention to your betta fish will give you the ability to determine exactly how to best move forward.

For example, is your betta being bullied by another fish, even another betta? You’ll need to separate them in some form or fashion, or make it less likely for them to bump into each other. Understand that once the cause to the damage has been addressed, the fin loss should clear up all on its own. Bettas are fairly hardy fish. Don’t forget that their fin will almost certainly return to its former brilliance.

Is the culprit a particular tank decoration? Are you not sure which one? Unless you have a massive tank with tons and tons of trees, rock items, and other products, figuring out the cause of your betta’s fin loss isn’t going to be too difficult. After all, betta fish are pretty territorial. Furthermore, they tend to focus on a fairly specific area for that territory. Simply identify and remove the item.

If fin-biting is the culprit behind your betta fish’s fin loss, all you need to do is figure out what is causing the stress or aggravation. It could be any number of things. Just make it a point to keep an eye on your betta, over the course of their day. With a close watch, you should be able to find the issue.

How To Prevent Betta Fin Loss

If the cause does not involve fin rot, or any other bacterial conditions that can lead to fin rot, then getting rid of the trigger will address the rest of the problem. However, if you want to optimize the healing time, while simultaneously preventing the more serious complaint of fin rot from ever occurring, there are several things to take to heart.

Maintaining the best possible water quality should be at the top of your betta fish care guide regardless. Maintaining ideal conditions for your bettas, which extends to making sure the water is being changed on a regular basis, means a betta that will be able to thrive and live for years to come. Some would even go so far as to suggest changing ten percent of the water in your betta aquarium every day, or at least every other day.

Whether you go that far or not, you should also make sure your betta is living in an ideal-sized tank. Anything less than 20-gallons for a betta fish is widely considered to be unacceptable. 10-15 gallons can be just “okay” for a betta, but you will definitely want more than that for any more. Furthermore, larger tanks, even a solo betta, create suitable conditions in which they can thrive.

You may also want to consider feeding your betta a treat known as daphnia. While this shouldn’t be the only thing offered to your betta in their diet, it does contribute greatly to their general health. This doesn’t equal a proven and specific benefit with respect to fin loss, but given its long list of benefits, it really doesn’t hurt to keep some of this stuff around regardless.

Finally, both aquarium salt and API stress coats offer additional ways to keep your tank in the best possible shape for bettas any other life. Aquarium salt leaves your betta with a better slime coat, which protects them from all sorts of things, including fin rot. An API stress coat is quite frankly rather impressive. Not only does it work at conditioning the water in your tank, but it also provides your betta with a de-stressor.

Betta’s Fin Grow Back

Will My Betta’s Fin Definitely Grow Back?

Almost definitely. It really comes down to the attention you’re going to give them during the healing stage. If you’re doing everything we mentioned in the steps above, the fin of your betta fish is going to be restored in no time at all.

Just keep in mind that the fin of a betta is going to be highly fragile during the recovery stage. You want to keep an eye on your betta to be certain they are eating. You should also keep an eye out for any indications that something new is causing stress to your betta. You don’t want that under any circumstances, but it can be particularly problematic while they are on the mend.

How Will I Know If My Betta Fish’s Fin Is Recovering

More likely than not, you are going to be pretty impatient for signs your betta fish’s fin is coming back from fin loss. Regardless of tank conditions, you need to be aware that it is going to take a little while.

Under the best possible circumstances, the fin of your betta fish should begin to grow back in just a few weeks. However, even with everything covered up to this point, it can still take some time for the betta to heal as it should. In most extreme situations, the fin will be fully healed within a few months.

As long as you see some progress, and keep an eye on them, you really shouldn’t have anything to worry about.

Look for a clear membrane along the fin of your betta. Do you see it? That means they are in the regrowth stage. They will almost certainly continue to get better from here.

Final Fin Loss Prevention Tips

Preventing fin loss is easier than you might think. Avoid adding aggressive fish to the aquarium, and make sure none of your decorations can potentially cause harm. You can also make sure your betta’s intelligence and playfulness are being met.

Gabriel R

Gabriel R

Welcome to Aquarium Fish City(AFC). I’m Gabriel and I have been keeping fish for almost fifteen years. My father was a huge fan of tropical fish and our childhood home had a huge aquarium which he tended and kept hundreds of species of fish over the years. I was always fascinated by our fish tank and would spend hours staring at the fish. They seemed to all have different personalities and would interact differently with one another. Here, you can find out everything you need to know about keeping fish and aquarium maintenance.

The Best Goldfish Tanks 2021: Which One Is Right For You? [Reviews + Guide]

Goldfish Tanks
Goldfish Tanks

As we’ve discussed in the past, your fancy goldfish need so much more than a small bowl and some fish food.

A fish known for its simplicity and hardiness, the goldfish in any form is unfortunately the victim of several dangerous misconceptions regarding its care. The assumption is that you can give your goldfish a bowl, some clean water, a bit of gravel, and nothing more. You feed them a few flakes every day. This goes on, until they pass away after a few months to a year.

In this updated buyer guide, we’ve put together a complete list of the best goldfish tanks for you and your goldfish to enjoy.

The So-Called Secret To Long Life In Goldfish

However, did you know that under the right care conditions, goldfish can live for at least twenty-five years? It’s true. The oldest goldfishes in the world top out at 40+ years of age.

There is no miraculous reason for this. A goldfish owner with a 20-year-old goldfish does not have to do anything remarkable to achieve this. They simply have to know what a goldfish needs to be healthy and happy. Feeding them a good diet is one example. Another would be making sure you are purchasing an aquarium which is going to be well-suited to their needs and lifestyle.

Again, you don’t have to go to any significant extremes here. With some basic research, you will be able to see clearly how to shop for and purchase a goldfish tank, and whatever else you put in your aquarium, will love.

Why Your Goldfish Tank Is So Important

First of all, let’s just get rid of the notion of a fish bowl altogether. They are simply too small for goldfish in any form or fashion. Bowls are generally only available in sizes as large as five gallons. This is significantly less than what your goldfish will need.

Take the Common goldfish. They can grow as large as a full foot in size. They love to swim quickly throughout their environment. They also tend to leave behind more waste than many other types of fish. For all of these reasons, they need plenty of room in which to move around comfortably. Five gallons, particularly if we’re talking about a goldfish tank that doesn’t have any filtration, is not going to cut it by a long shot.

Keep in mind that the Common goldfish isn’t the largest goldfish type out there. Not by a long shot.

What Kind Of Tank Should I Get For My Goldfish?

Breeders and hobbyists all agree that you need a best goldfish tank that is at least ten gallons. In fact, many suggest going up another size for the minimum to twenty gallons. Obviously, you will want to take the potential limitations of your own space into consideration. Having said that, anything less than ten gallons is really not going to make for a very happy life for any fish you put in it.

Keeping in mind these tank sizes, we can now take a closer look at some of the best tanks for goldfish that are currently available. If you want to start with the best possible environments for your aquarium dreams, these are the tanks you will want to check out first.

Which Factors Are Most Important When Choosing A Best Goldfish Tank?

Different people are going to have different needs when it comes to finding the best goldfish aquarium. If you are new to shopping for one, there are a number of factors that are going to help influence the one that will best suit whatever you have in mind:


We have already made it clear that you want to start with at least twenty gallons in a fish tank. Before you start looking for something that will work for your needs, try to estimate how many fish you’re going to want at the start. It is usually best to start with one or two, but you may feel that you are capable of handling more than that. It also doesn’t hurt to purchase a goldfish tank with an eye towards getting more fish for it later on.


Paying attention to which materials are used to make fish tanks is one of the most important things to keep in mind. You want materials that are built to resist breaks, leaking, and even scratches whenever possible. The two main options are glass and acrylic. 

While both are quite good, many find that glass offers better resistance to scratches and certain types of leaking, and a better overall shape for the goldfish to swim comfortably. Acrylic fish tanks do offer a more aesthetically-pleasing view to outsiders though.


We’ve touched on this before, but it is well worth repeating a second time. When researching companies that manufacture aquariums, it almost goes without saying that you want a company with a peerless reputation for quality in their products.

One of the biggest strengths with acrylic fish tanks, for example, is the way they are generally considered to be stronger than glass tanks. They are also lighter than glass tanks, which means cleaning and carrying them is going to be a lot easier, as well.


Decide now if you want a goldfish tank with or without the equipment you need for setup.


Ideally, you’re going to find an aquarium with a filter that works flawlessly. However, you may have to go out and find one anyway.

Opening: There are different goldfish tanks with different types of lids, hoods, openings, or whatever the case may be. If you don’t have a whole lot of space, and every inch counts, you want to focus your search on tanks with low-profile hoods, or something else along similar lines.

best goldfish tanks

Reviews For The Best Goldfish Tanks

1. Aqueon Aquarium 20 Gallon Long – Perfect for One Large Fancy Goldfish

While the height of your aquarium is important, what matters arguably more is the length of the tank. An ideal tank is going to give your goldfish plenty of room to swim around, without having to turn around as much. Goldfish generally like to swim from one end of the tank to the next.

To that end, the 20-gallon long aquarium from Aqueon is going to be a great choice for many hobbyists. Coming in at twenty gallons, the goldfish tank is longer, but shallower. Depth is important with any aquarium you might purchase, but it’s not the only thing you’re going to want to keep in mind.

With this option, keep in mind that all you’re getting is the tank. This can be very freeing for those who want to be able to choose their own equipment. At the same time, it may not be a great idea for anyone who is new to keeping fancy goldfish, and may not want to be left to figure out every single thing they are going to need.

The choice is yours to make. However, keep in mind that at the end of the day, building your goldfish aquarium piece by piece is not too terribly difficult.

Aqueon Aquarium 20 Gallon Long
  • High quality glass construction with dimensions 30.25" x 12.5" x 12.75"

2. SeaClear Acrylic Aquarium Combo Set

Available in a fantastically-diverse array of sizes and shapes, this is a good example of why quality is so important in the aquarium you choose. You want something that will ideally stand the test of time. Don’t forget that your fancy goldfish can live a quarter of a century with good care. It stands to reason that you will want them in something they can enjoy for years to come.

Another component to this aquarium that we absolutely love is the view it provides. Thanks to careful attention and exceptional materials in the production phase, this aquarium set for goldfish offers a degree of clarity that will make it wonderfully easy to appreciate your goldfish in their daily routine.

You will also appreciate the fact that this goldfish tank is made from acrylic. This means an aquarium that is extremely durable, and highly unlikely to leak or ever break. Many goldfish owners who choose this tank, which starts in the 20-gallon tank, do so because it is a good aquarium for homes with kids and pets. It also comes with at least a few of the things you’re going to need to get started.

Just keep in mind that acrylic tanks are a little less resistant to scratches than some choices. Also, the florescent light doesn’t seem to be very popular with some customers.

SeaClear 20 gal Acrylic...
  • Combo includes aquarium, reflector and electrical 15" light fixture

3. Tetra Complete Aquarium Kit

If you’re looking for something that will give you everything you need to get started with a basic aquarium setup, the Tetra Complete Aquarium Kit is going to be a fantastic choice. While perhaps not ideal for those who want to keep a lot of fish, it is perfect for those who are just starting out with one or two fish.

Unpacking everything in this kit, you’re going to find that the name lives up to what it promises. Not only do you have everything you need to get set up with a basic aquarium, but the Complete Aquarium Kit from Tetra is also ridiculously easy to set up. This kit is a very popular choice for parents who want to give their children a start in keeping fish.

The filter is also pretty impressive. Not only does it do the job as advertised, but it is also exceptionally quiet. We also appreciate the fact that despite how much stuff it comes with, you will find yourself still with plenty of room for additional plants and decorations. The LED light associated with this kit is also one of the better selections we have found.

Tetra Aquarium 20 Gallon Fish...
  • Tetra Glass Aquariums are made in the USA and are built to last with scratch resistant glass

4. Tetra 55 Gallon Aquarium Kit

Looking for something a bit bigger than the choices we’ve covered? If you know for a fact that you’re going to want a number of fish in your aquarium right from the start, you’re not going to want to settle for 20 gallons. You probably won’t want to waste your time on a 40-gallon option either.

While the price tag for this second entry on our list for Tetra can strike some as a bit on the steep side, it is hard to argue with the quality, the size of the goldfish tank, and what those things will mean to your efforts at keeping goldfish.

Much like the entry above, you’re going to find that you’re getting everything you need for an aquarium setup right out of the box. You shouldn’t have to buy anything else, unless you want more plants and decorations.

Also, as is also the case with the above Tetra kit, we would say everything included functions exactly as it should. This is not always the case with aquariums. Some kits are a little lacking in certain areas. Filtration can be one example, which leads to the need for an additional purchase. You shouldn’t have to worry about that here.

Remember that this is a very large tank, with measurements of 51.90″ L x 24.40″ W x 16.40″ H. The tank in of itself weighs nearly eighty pounds. Once you’ve added your water, fish, material for the bottom, and everything else, the weight is over 500 pounds.

Keeping all of this in mind, it is something that will occupy a significant amount of time in your space. Make sure you’re going to have plenty of room for not only the aquarium itself, but in terms of being able to comfortably maintain it, change the filter, and so forth.

Tetra 55 Gallon Aquarium Kit...
  • LARGE ENVIRONMENT: Larger environments can house more fish or a greater variety of fish. Maintains water temperature. Essential for tropical fishkeeping

5. Marina LED Aquarium Kit

While available in several other sizes, you are obviously going to want to at least start with the 20-gallon option. This is considered by many to be one of the top aquariums for beginners. There are several reasons as to why this is the case. All of them point to an aquarium that is well suited for those just starting out, as well as those who many not have as much space as they might like.

This is another good kit for those who want to have everything they’re going to need right there in one place. Because this is such a solid starter aquarium kit, you’re also going to appreciate the fact that everything is extremely easy to set up. The instructions are very good indeed at laying everything out in the simplest terms possible.

Again, while compact, the 20-gallon tank itself will be just fine for one or two goldfish. Even maintenance for the tank is refreshingly straightforward. All you need to do is make sure the filter is changed out every month. Aquarium maintenance instructions are included, as well. You won’t have to worry about a thing.

However, some users have complained that the filter is not as strong as it needs to be. While this is something that you can obviously decide for yourself, it can be helpful to keep in mind that goldfish leave behind more waste than many other types of fish.

At the end of the day, this is a quiet, compact, and very affordable aquarium for those who are looking to get started on the right foot.

Marina Aquarium Kit - 20...
  • 20 U.S. gallon glass aquarium

6. Skroutz Aquarium Starter Kit

Our look at the best aquarium starter kits for fancy goldfish continues with this worthwhile entry from Skroutz. While the name may strike you as unusual, note that this is a well-reviewed, widely respected manufacturer of aquarium kits and similar products for enthusiasts of all ages.

One of the more interesting things about this goldfish tank is the fact that it clocks in at 29-gallons. This makes it a good option for anyone who wants something a little bigger than a 20-gallon tank, but doesn’t want to go all the way up forty gallons. The Skroutz Aquarium Starter Kit is a nice compromise between those sizes.

The tank includes a hood that is designed for the aquarium to function well in small spaces. Everything about this aquarium is designed to be as compact as possible.

At the same time, we would venture to say that everything included in the box is going to work exactly as it should. You may want to supplement or replace the filter, as a small number of people have complained about it, but most find it to be just fine for 1-3 goldfish.

The only thing we would suggest replacing, or at least supplementing, would be the fish food that is included with the kit. While the food is fine for goldfish, you want to give them a reasonably varied diet.

What you want to be doing is getting as close as possible to the things they would like to eat in the wild. As far as the best food for goldfish is concerned, you have some great choices available.

Skroutz Aquarium Starter Kit...
  • 29-gallon angle aquarium pack with low-profile hood - Normal light sparkle


Getting the right aquarium is clearly one of the most important decisions you will make as a fancy goldfish owner. With so many different goldfish tanks and kits on the market, it can be easy to feel a little overwhelmed by just how much is out there.

Don’t worry. Using our guide as your frame of reference, it shouldn’t be at all difficult to find an aquarium that is going to meet your goldfish and other sea creatures’ needs for as long as you have them.

Gabriel R

Gabriel R

Welcome to Aquarium Fish City(AFC). I’m Gabriel and I have been keeping fish for almost fifteen years. My father was a huge fan of tropical fish and our childhood home had a huge aquarium which he tended and kept hundreds of species of fish over the years. I was always fascinated by our fish tank and would spend hours staring at the fish. They seemed to all have different personalities and would interact differently with one another. Here, you can find out everything you need to know about keeping fish and aquarium maintenance.

How To Breed Goldfish The Right Way – A Step By Step Guide (2021)

How To Breed Goldfish Successfully
How To Breed Goldfish Successfully

While owning goldfish can be lighthearted, pleasurable, and a lot of fun, learning how to breed goldfish is something else altogether. Indeed, when it comes to breeding any sort of fish, the challenges and demands are numerous. This is particularly true, when it comes to breeding goldfish.

Which goldfish breeding method is the best? What are you going to need to be successful? How long does it take to begin to see results? We’re going to tackle these questions, as well as others, in this overview guide to breeding goldfish.

Whether you plan to do it for profit or for pleasure, there are several things you’re going to want to keep in mind.

From controlling your spawn, to raising your fry, here is everything you need to get going.

Getting Started With The Right Equipment

There are two notable breeding methods that we’re going to touch on. One is known as the natural method of goldfish breeding, while the other is known as hand-breeding. Each method has their own particulars and challenges.

Before we break down what you need to know about these methods, let’s take a look at the essential equipment every goldfish breeder needs to begin:

The Main Space

This should be a large tank. We would suggest starting in the 50-gallon range, but you may want to consider something even larger. You will also want to make sure this tank includes a good filtration system, the proper decorations, and everything else a standard tank needs to be functional and comfortable.

A Secondary Tank

The main aquarium is only the beginning. You’re also going to need a nice, comfortable tank in which to raise your fry. This tank should be around 10 gallons or 20 gallons. Nothing larger than that should be necessary, particularly for a beginner.

(Looking for the best goldfish tank? )

A Heater

There are a number of different options available to you on this front.


We touched on this above, but it is worth emphasizing. An emphasis on live plants is best. Hornwort is a good example. Silk plants and plastic plants are other options that you can explore.

Sponge filter

There are several possibilities for both the 10 and 20-gallon tanks we discussed. You’re going to need this for the fry tank.

Air pump

This is another essential component for the fry tank. Research and choose one that you think will suit your needs.

Spawning Mop

This is entirely optional. This DIY goldfish spawning device is designed to fulfill the role of plants, in terms of catching and keeping the eggs safely. You will want to decide for yourself if one of these is necessary.

Finally, of course, you’re going to want male and female goldfish, as well. You want goldfish who have reached their sexual maturity, which is around one year old. You also want to know how to sex goldfish for breeding correctly. This is one of the aspects of goldfish breeding where things can get a little bit tricky.

How To Sex Goldfish For Breeding Purposes

If you only have room enough in the tank for a single pair of male and female goldfish, that is fine. Some like to hedge their bets with a few males and females. This is fine, as well, provided you have a large enough tank to accommodate all of them comfortably. You should also try to keep more males than females, as this will increase the odds of successful mating.

The challenge on your end is to sex your goldfish correctly. Otherwise, obviously, you aren’t going to get very far.

Sexing is difficult, but generally not beyond these simple measures:

Body Shape

While not reliable solely on its own, this measure can nonetheless move you in the right direction. Female goldfish generally enter their breeding age, their bodies become heavier, plumper in appearance. Males as a rule do not gain weight in this fashion. They are more often than not on the slimmer side. Females also can look from asymmetrical than males when viewed from the top of the aquarium or pond.

Breeding Stars

Made from very small tubercles, which are small, roundish growths that appear on both plants and animals, these little white dots are well worth seeking out on your goldfish. These growths are made from the same materials as what makes fingernails and hair. When a male is ready for spawning, these dots are going to be easy enough to spot on the scales, pectoral rays, and gill covers. Females can have these spots, but this is considered to be an exceptionally rare event.


Also known as the anus, the vent of the female will start sticking out a little bit, as opposed to the male, when it is ready for spawning. The appearance will be similar to comparing two different belly buttons.


This is perhaps the most important, or at least easiest, indicator of whether or not your goldfish are ready for breeding. The males will start chasing the females around the tank. You will notice this when they start shoving their heads inside the tails of the female to shove them all around the aquarium. It is not uncommon to see multiple males in pursuit of a single female.

How Do I Get My Goldfish Ready For Breeding?

Once you know for certain that they are in the breeding period, and once you are confident of their respective genders, you can get them ready for the actual breeding process.

Females must exert a massive amount of emergency for spawning. Males do, too, but the demands are particularly substantial fore the females. They are going to need to bulk up to build enough in the way of fat reserves to be able to withstand producing eggs and milting. Before you actually begin to initiate spawning, you will need to spend approximately six months on the conditioning stage.

The transition from winter to spring in nature is what triggers the spawning behavior. If you keep them in a pond, you will want to keep an eye out for some of the indicators we mentioned above. If you are keeping them in your aquarium, you are going to want to start recreating the winter/spring transition. This is where the heater becomes handy. You’ll want to get the temperature in their tank up to around seventy-five degrees Fahrenheit.

When It’s Time To Actually Breed Your Goldfish

At this point, you are now ready for the actual breeding. This is where things can get particularly challenging. It is very easy for the whole thing to go south, and to find yourself being made to begin the work all over again. Any goldfish breeding expert will tell you that this is a trial and error process. Sometimes, it simply doesn’t work out.

Having said that, you are now at the point in which you can determine which breeding method is going to suit your purposes best.

We’re going to cover the basics of each. As you decide the pros and cons of each, make it a point to do additional research that breaks these methods down step by step.

How To Breed Goldfish: 2 Proven Methods

First things first: Make sure you have the additional tank on hand to keep the fry in.

The two methods, as we discussed earlier, are known as the Natural Method and the Hand-Breeding Method. Each has its own strengths and weaknesses. For example, the Natural Method is going to rely on expected behaviors to a significant degree. It is perhaps the easiest of the two methods, but it stil requires a great deal of concentration.

You have to keep a close eye on breeding behaviors, as well as anything that may go wrong. You will also need to be ready to have the fry transported to your secondary tank. This is also the point in which you will need to make your own spawning mop. We highlighted this above, and it is not difficult to make by any means.

Then we have the Hand-Breeding Method. This method gives you considerably more control over the breeding process. However, as the name of the method implies, you are going to be required to take things into your own hands. This creates unique challenges that you do not find with the Natural Method. As you also may imagine, there are some similarities between these methods. Up to a certain point, there is only but so much you can do.

Here are some examples of when you may need to pursue the Hand-Breeding Method:

  • You only have one male, who is finding it difficult to locate your female.
  • Your window of time for breeding is a very, very limited.
  • The male is not as active as the Natural Method requires him to be.

These are all good reasons for hand-breeding. Furthermore, some simply like the ability to be in more control of the effort. Just keep in mind that all of this requires a delicate touch in the extreme. The same degree of impressive patience is also demanded. Perhaps, even more so.

Regardless of the breeding method you choose, your eventual goal is to find yourself with a 10 or 20-gallon tank full of fry. Caring for them and then culling them are your final two steps in this arduous, thrilling venture.

When It Is Time To Raise Your Fry

The eggs should be hatched in water no deeper than six inches or fifteen centimeters. Extremely gentle aeration is required, and the water should be maintained in the 70-75F range. Your eggs should begin hatching within two to four days. When this happens, keep in mind that you will not need to feed them for several days. This is because they can live off the yolk of the egg sacs.

Once they begin moving on their own, your fry are going to be absolutely starving. You will want to have fresh brine shrimp handy to keep them fed and happy.

Culling Your Fry

Understand that culling your fry, which is to eliminate the ones with undesirable traits, is NOT something that you are required to do. This is something that is done by those who are breeding for profit, simply because it is not cost effective to care for goldfish that no one is likely to buy.

Even so, particularly among those who breed goldfish for pleasure, some opt to keep whatever they wind up with. For many who go through the long journey of breeding goldfish, the idea of intentionally disposing of any of them seems unfathomable. The choice is ultimately yours to make.

Gabriel R

Gabriel R

Welcome to Aquarium Fish City(AFC). I’m Gabriel and I have been keeping fish for almost fifteen years. My father was a huge fan of tropical fish and our childhood home had a huge aquarium which he tended and kept hundreds of species of fish over the years. I was always fascinated by our fish tank and would spend hours staring at the fish. They seemed to all have different personalities and would interact differently with one another. Here, you can find out everything you need to know about keeping fish and aquarium maintenance.

15 Most Popular Types of Goldfish + Images

Bubble Eye Goldfish
Types of Goldfish

Don’t make the mistake of assuming every type of goldfish is basically the same. While the different goldfish types certainly share a number of similarities, there are in fact some key differences that are well worth keeping in mind. Knowing the specific types of goldfish that you plan to have in your aquarium can ensure you give them the very best of care.

The Benefits Of Owning Goldfish

If you are just starting to gather your resources to set up your aquarium, goldish are likely to be the first possibility you hear about. Their popularity at this point is iconic. While you may think of them as plain, and not terribly exciting, the truth of the matter is that they have so much to offer your aquarium.

For starters, goldfish, which belong to the Cyprinidae family (which includes carps), come in far more colors than many people realize. Beyond the yellows and oranges that everyone is already familiar with, you will find a range of fish that come in an equally dazzling assortment of colors. Furthermore, goldfish are not some tiny animal, growing to just a few inches. The largest known examples grow to a full foot.

They are bright, intelligent, and very attractive additions to any aquarium. As we discuss the many different types of goldfish out there, you are going to discover that for yourself.

Remember: With proper care, your goldfish, depending on the type, can live anywhere from a full decade to 25+ years. Yes, you read that correctly.

Breaking Down The Different Types Of Goldfish

There are essentially two different categories of goldfish. Those are the ones we’re going to be focusing on here today.

Let’s get to our list of the major types of goldfish. Keep in mind there are approximately 200 different breeds of goldfish out there. We don’t have time to cover them all!

Single-Tailed Goldfish

This classification includes some of the most popular types of goldfish found in pet stores. The list extends to Common goldfish, Comet goldfish, Wakin goldfish, and Watonai goldfish. Each have their own unique characteristics and considerations.

Common Goldfish

Common Goldfish

As the name implies, this is the most common and perhaps popular goldfish type on the planet. You can certainly find hundreds of them in just about every pet store in the world. They are defined by their mix of orange and yellow in their coloring.

While they may lack the intricate, bright patterns of other types of goldfish, there is something understated and simple to their build that remains quite lovely in its own singular way.

They have what could be defined as a normal body, yet also one that is very long. Their fins are fairly straightforward, and not as flashy as some of the other types we will cover. They are the most affordable goldfish type, and they are widely considered to be the hardiest example you are going to find.

In other words, they are basically the perfect beginner’s fish. However, they still require the very best of attention and care.

Comets Goldfish

Comet Goldfish

Despite having similar shapes, sizes, and even coloration similar to that of the Common goldfish, there are some elements to Comet goldfish which set them apart from Common.

This is particularly true when we talk about their caudal fin. You can always tell you’re looking at a Comet goldfish because the caudal fin is going to be just about as large as the rest of their body. Also, the similar coloration to Common differs sharply when we look at the blotches of color which can be found at different points on their body.

Because of their love of swimming, some experts suggest Comet goldfish, which have been popular pets for well over a century, do best in ponds. If nothing else, make sure you are putting these guys in a large tank. You may have to go to the 50-gallon range.

Credit: Juan Carlos Palau Díaz

Shubunkin Goldfish

This is the point in which it becomes clear that goldfish are far more colorful and diverse than they sometimes get credit for. These are utterly gorgeous goldfish. They offer some of the most unique patterns and colors to be found anywhere in the wide world of this fish type.

Available in such varieties as Blue, London, American, and Bristol, Shubunkin goldfish are celebrated for their singular patterns and coloration. Their clear, shining scales are quite something to behold. In fact, if you look closely, you will realize their distinctive dark spots are actually beneath the scales themselves!

Wakin Goldfish

This is another profoundly fascinating example of different goldfish types. Despite some marked similarities to Koi, to the point where Wakins are sometimes mistaken for them, this is in fact one of the most characteristic goldfishes we’re going to cover here.

Why do people love the Wakin? Perhaps, it is because they are the only single-tailed goldfish to spotlight two caudal fins, in addition to a pair of anal fins. This gives them an appearance that truly sets them apart from the seemingly endless array of types and breeds.

In fact, some dispute whether or not the Wakin is single-tailed or fancy. Due to the build and other features, it makes more sense to us that they should be seen as a single-tailed example.

Jikin Goldfish

Jikin Goldfish

Here we find another example of a single-tailed goldfish with an almost overwhelming aesthetic appeal. Purely on the basis of their looks, they are another very popular, sought-after goldfish example.

The body type is very similar to that of the Wakin. Both are quite long, and both are notable for the presence of the double fin. However, the Jikin differs sharply on the color side of things. The white body with red fins can make for a very compelling addition to any aquarium. You’ll love the way they “flicker” while swimming about the tank or pond!

Fancy Goldfish

In the other corner, we have double-tailed goldfish. These are generally referred to as “fancy” goldfish. The only reason why anyone really calls them fancy in the first place is because of the presence of that extra fin. Other than that, they really aren’t all that different from single-tailed examples.

Fantail goldfish

Fantail Goldfish

At last, we come to some of the most impressive examples of fancy/double-tailed goldfish you are going to find. It makes sense to that end to start at the top of the list for most people with what is known as the Fantail goldfish.

While looking fairly similar to the Common goldfish, the fancy part comes when you see that they have two tails. This gives them an added flourish which makes them perhaps the most popular fancy goldfish available in pet stores and from breeders.

Much like Common goldfish, they can grow up to a foot in length. They are also among the hardiest examples of fancy goldfish. Nonetheless, to reiterate an earlier point, they still need optimal tank conditions, good food, and so forth.

Telescope Eye Goldfish

Telescope Eye Goldfish

Whether or not the eyes really are the windows to the soul, there is something about a distinctive pair of peepers that can captivate our attention. It is this thought which can be used to perhaps explain the popularity of the Telescope Eye goldfish.

Of all the different breeds and types we can discuss, the Telescope Eye goldfish is perhaps the most unique-looking of them all. Featuring a pair of huge, decidedly round eyes, which stick right out of their head, combined with their small mouths, Telescope Eyes have a look that is memorable, to say the least.

Unfortunately, those noteworthy eyes make them more susceptible to injury. If you aren’t carefully in how you set up their surroundings, your Telescope Eye is very likely to bump into something, damaging those eyes. This creates a higher risk of infection than other types of goldfish. They also have tremendously bad eyesight.

While they can make for a wonderful addition to any aquarium, they do require a relatively more intense approach to their care.

Oranda Goldfish

Oranda Goldfish

For many enthusiasts and goldfish lovers, the Oranda goldfish is one of the most delightful looking in the bunch. They have an expressive face that many seem to fall in love with.

Yet this is not why so many people consider them to be one of the best Fancy goldfish types on the planet. To understand this, you simply have to look at the top of their head. That is where you’re going to find a large, orange hump on the top of its head. Some people like to pretend it’s a little hat.

Regardless of whether or not you do that, there is no question that Orandas are just gorgeous and singular in that beauty. Many recognize the look of the Oranda, if not the actual name.

Available in several colors, the orange hump is just a decorative collection of skin folds.

Pearlscale goldfish

Pearlscale Goldfish

One of the first things you’re going to notice about the Pearlscale goldfish is that they have a hump on the head that is similar to the Oranda. That is really their only similarity. In fact, you’re going to find that a number of different goldfish feature this hump on top of their heads in one form or another.

What makes the Pearlscale goldfish so different are their round bodies, combined with shortish white fins. The large scales you’ll notice have an aesthetic quality that is often compared to jewels. For this reason in particular, they are regarded as some of the prettiest goldfish you can add to your aquarium.

One interesting tidbit: Compared to other types of goldfish you can find, Pearlscale goldfish swim much more slowly than many of the others we’ve covered here.

Bubble Eye Goldfish
Credit: Jonathan Leung

Bubble Eye Goldfish

If you thought the Telescope Eye goldfish was a strange-looking customer, then we would venture to say that you haven’t seen anything yet!

The Bubble Eye goldfish is perhaps just too unusual for some newcomers to keeping and caring for goldfish. There is something decidedly comical about the appearance of the massive water sacs which protrude impressively beneath their wide-open eyes. Their coloring is an understated orange, but when you look at pictures of them, you can see why their owners aren’t really concerned about that.

However, as you may have perhaps guessed from looking at them, their distinctiveness comes at a fairly high price. Because of the sheer size of these sacks, Bubble Eye goldfish consistently run the risk of seriously damaging them by running into something. This also means they are more susceptible to infection, which is a possibility we also mentioned with the Telescope Eye.

For this reason alone, they are not considered a good goldfish choice for beginners. Furthermore, for those who do decide to put these in their tank, you will want to make certain to avoid overcrowding accessories and other features. You will also want to keep in mind that their vision is severely impaired, perhaps more than any other example of a goldfish. They also possess mobility issues, when compared to other types.

Many feel that it is simply not fair to these fish to breed them in the first place.

Moor Goldfish

This is a good reminder that despite the name, not all goldfish are actually gold. It just happens to be that a lot of them are. What makes the Moor goldfish so completely fascinating to us is the fact that they do indeed live up to that name. They are completely black in appearance, with the exception of a space under their stomachs.

Specifically bred for this unusual color, the Moor goldfish offers one of the most striking contrasts to the water, and indeed, to everything else in the tank. They are nimble, yet very slow and methodical in how they swim throughout their environment.

You will also want to note that their trailing fins are the same as that of the Telescope goldfish. There is a reason for that. To create the color in the first place, a Moor will often be bred with red Telescopes. This creates a breed that is highly sought after among enthusiasts.

Celestial Eye Goldfish

Celestial Eye Goldfish

With the Celestial Eye goldfish, we once again look to a type of goldfish that has been specifically bred to look a certain way. While these fish are beautiful and unique in appearance, with large, rounded eyes, they also go through many of the same issues as other goldfish with large eyes and/or protruding features.

Their most differing feature from any other goldfish would have to be that their eyes face upwards, rather than sideways (as is the case with Telescope goldfish).

While the large eyes do give them a very satisfying cartoon-like appearance, this look does come with the same price as the other large-eye examples we’ve discussed. This means you’re going to need to take special care with their surroundings. Physical damage can also result in being more prone to various infections and diseases. They are generally orange-red in appearance.

Lionhead Goldfish

We haven’t come even close to exhausting the full assortment of goldfish types that you can find. At this point, we can only hope you appreciate their diversity and other unique characteristics as much as we do.

The Lionhead fancy goldfish is so wild looking to some, they don’t even realize they are indeed looking at another example of a goldfish. They are proof that we still haven’t even run out of the goldfish examples that can completely change the way you think about them.

No dorsal fin. That is one of the first things you will notice. You will also want to pay attention to the impressive growth that can be found around the eyes and face. From a distance, they look like something of a blob. You may not even be able to see the eyes up close.

They don’t move particularly well, due to their odd appearance. To counter this, make sure they always get enough food. This is even more important, if you decide to keep them in the tank with other, different fish.


These are just a few of the most well-known types of goldfish. If you want to start with some great ideas for your tank, we suggest beginning here!

Gabriel R

Gabriel R

Welcome to Aquarium Fish City(AFC). I’m Gabriel and I have been keeping fish for almost fifteen years. My father was a huge fan of tropical fish and our childhood home had a huge aquarium which he tended and kept hundreds of species of fish over the years. I was always fascinated by our fish tank and would spend hours staring at the fish. They seemed to all have different personalities and would interact differently with one another. Here, you can find out everything you need to know about keeping fish and aquarium maintenance.

Goldfish Lifespan: How Long Do They Really Live?

goldfish lifespan
goldfish lifespan

One of the biggest misconceptions about Goldfish concerns their lifespan. Chances are, you know more than a couple of people who have owned and lost goldfish after only a few weeks or months. The misconception comes down to the assumption that this is normal. Entirely too many people believe that Goldfish as a rule are doomed to short lifespans.

However, there is so much more to this subject than many realize. For example, there is a long list of factors which can influence the lifespan of a goldfish. Furthermore, the type of goldfish you own can also determine how long it is likely to live.

The truth of the matter is that in many situations, your Goldfish can live for years. In some cases, they can even live happily and healthily for several decades. We’re going to show you what we’re talking about. This will also cover everything you can do to ensure your Goldfish lives the longest, most comfortable life possible.

Why Are My Goldfish Not Living Very Long?

Bred since the 19th century, people love Goldfish for how easy it is to care for them. Unfortunately, a shocking number of people subscribe to the notion that Goldfish are a disposable pet, prone to a short lifespan. These are falsehoods more frequently than many realize. This ranks right up there with the incorrect belief that Goldfish have short memories.

Goldfish belong to a carp family known as Cyprinidae. Among other traits, this family of freshwater fish are known for their ability to live upwards of twenty full years. Yes, you read that correctly.

So, what’s the problem? Why aren’t your goldfish living even a tenth of that average lifespan? There are a few things on this subject you need to keep in mind.

Factors Influencing Goldfish Lifespans: Which Type Do You Have?

Two problems with giving you a rough estimate of how long your Goldfish is going to live:

  1. Different types have different lifespans. In some situations, we’re talking about decades’ worth of difference in the number of years.
  2. Conditions impact Goldfish lifespans dramatically: Does your Goldfish live in a bowl? In an aquarium? What is their average water temperature? What are you feeding them?

Even genetics and breeding conditions can play roles in the average lifespan of your goldfish. In order to give you the best possible estimate, we’re going to need to tackle all of these questions individually.

Let’s start with the different types of Goldfish you can come across.

How Goldfish Type Influences Longevity

Common Goldfish have the longest lifespans of any of the different types you are going to encounter. When properly cared for, they can live as long as twenty-five years. In some cases, they can live for fifteen full years longer than that.

Tied for second are the Shubunkin and Comet goldfish types. Each can live for upwards of fifteen years under the best possible circumstances. You will also want to pay attention to the Oranda goldfish. While they tend to live for around ten years on average, the best examples of the type can live for as long as twenty years.

In fact, most goldfish, under the best efforts towards how to care for goldfish, are going to be able to live for at least a decade, if not more. The only type of goldfish with a potentially and relatively short lifespan are the Fancy goldfish. They may live just five years, compared the others we have mentioned here. On the other hand, they can also live as long as ten years under certain circumstances.

There are also Fantail goldish. These usually live for at least fifteen years. Many live for much longer than that.

At this point, it should be pretty clear to you that the issue does not come down to goldish being stuck with a short lifespan. As it turns out, there are many things you can do that are going to give your goldfish, regardless of the specific type you purchase, the best quality of life possible.

In order to achieve this, you’re going to want to start with how you’re keeping your goldish in the first place.

Why You Should Never Keep Goldfish In A Bowl

The image of the goldfish in a bowl is something almost all of us can bring to mind. It is a visual that can be found or referenced in virtually every type of media imaginable. It can even be used to describe someone who finds themselves living in crowded, overwhelming conditions.

This description is apt for goldfish, as well. The truth of the matter is that goldish should not be permanently kept in a bowl under ANY circumstances. The thing about goldish is that they are very, very hardy fish indeed. This means they can live under fairly diverse settings.

However, this hardiness, combined with other factors, has created a situation in which it is believed goldfish need very little to survive. A bowl is simply too small, with the largest examples usually in the five-gallon range. Like most freshwater fish, goldfish need lots of room to live, eat, play, and potentially breed. Experts say you should start with tanks that are least twenty gallons.

Goldfish have lots of energy. Make sure they have enough space in which to use that energy properly! You should also keep in mind that goldfish produce quite a bit of waste. This isn’t prohibitively so, but a small tank or fish bowl will not be enough to keep this fact in mind. Their waste can impact the water to the point of creating an unhealthy environment. This is why many do not live long.

Another reason is that smaller tanks and bowls also limit their growth. Goldfish need room enough to grow the standard size of anywhere from half to a full foot. Considerably larger than the impression we sometimes have of them as these tiny things.

To summarize: Getting a good-sized tank is literally the most important thing you can do to ensure a long lifespan for your goldfish. There are a few other things you can do, and we’re going to touch on those shortly, but a large tank with good filtration and other features is essential.

What Else Can I Do For My Goldfish?

In case you are wondering: Yes, establishing an actual outdoor pond for your goldfish is the best way to recreate their natural habitat. However, as you may have also guessed, creating your own goldfish pond is something that requires a significant time, money, and energy investment. At the end of the day, you can take our word for the fact that a large tank with the right accessories and other essentials will be just fine for your goldfish.

Let’s wrap things up with a few more tips on how to give your goldfish the best possible degree of attention and care:

  • Remember that because we’re talking about some of the messier examples of ideal fish for an aquarium, you’re going to need to clean the aquarium on a regular basis. Once every couple of weeks should be just fine, as long as you’re taking care of other aspects of their care and maintenance.
  • You should also purchase a water testing kit, so you can always be on top of the levels for stuff like ammonia or nitrogen. Remember also that cleaning the tank entails having the water changed out, as well.
  • The temperature of the tank is another thing you are going to want to keep in mind, as well. One of the most important things to remember is that these are temperate fish. You still have a good range of anywhere between 68F and 74F.
  • It is also of considerable importance to make sure your goldfish have the best possible filter for their needs. External/cannister filters are a good idea, if you plan to keep a large school of a fish that once again, can get pretty messy.
  • The diet of your goldfish is another area that is often neglected due to certain misconceptions. Like any fish you’re planning to keep, you can’t just feed them anything. Zooplankton and insects are eaten by goldfish in the wild. The diet you give your goldfish will need to reflect this as closely as you can manage. This means seeking our goldfish food that provides them with a good mixture of veggies and protein.
  • You should also avoid overcrowding the tank. For example, if you have a 20-gallon tank, you probably shouldn’t have more than 2-4. Some would even go so far as to suggest you should only just have two. Click here for a comprehensive guide to how many goldfish you should keep in your tank. This includes keeping in mind that some types, such as Fancy, require more space than Common goldfish.


It is estimated that there are over 125 different goldfish breeds in the world. Regardless of the specific ones you choose for your home, keep all of the above in mind to ensure they receive the best care.

Gabriel R

Gabriel R

Welcome to Aquarium Fish City(AFC). I’m Gabriel and I have been keeping fish for almost fifteen years. My father was a huge fan of tropical fish and our childhood home had a huge aquarium which he tended and kept hundreds of species of fish over the years. I was always fascinated by our fish tank and would spend hours staring at the fish. They seemed to all have different personalities and would interact differently with one another. Here, you can find out everything you need to know about keeping fish and aquarium maintenance.

Can Betta Fish See Color? (We’ve Got Answers!)

Can Betta Fish See Colors
Can Betta Fish See Colors

To be sure, one of the most common questions we receive asks the question: can betta fish see color?

While this is a fairly fascinating subject, when explored in greater depth, you’re going to want to understand that the answer probably won’t surprise you. That is to say, if you already know some basic facts about fish, you probably know which direction this topic is headed in.

So Can Betta Fish See Color?

Yes, betta fish can indeed see color! This is a fundamental component to their relationships with the other fish you may be keeping in your aquarium. In particular, their ability to see color highly influences how they interact with other bettas.

You already know that male bettas will perceive other male bettas to be a threat. This is true of any fish that run to a colorful design. In other words, in order for your betta to react in the first place, they obviously have to be able to see the bright colors of the fish that makes them feel in danger.

As it turns out, where this subject begins to get interesting comes down to the various factors which influence how they see and absorb color. For example, light can dramatically impact the ability of your betta to see color. This is just one outside influence to consider.

Which Conditions Influence Bettas Seeing Color?

In the same way that one factor or another can influence how we see the world around us, bettas can have both vision and color perception altered by the circumstances around them. We mentioned light, which is worth a closer look, as there is a bit more to it than that.

How much light is inside your tank? This is one of the most significant factors influencing whether or not your betta is going to be able to see color. For example, if you turn the light in the tank off at night, as this simulates their natural environment, then your betta isn’t going to be able to see color as well as it would with the lights on.

How clear is your water? If we find ourselves surrounded by something that muddles our vision, then our perception of color is going to be chaotic at best. The same holds true once again for bettas. If the tank is murky or dirty, these things are going to make it harder for the betta to see color properly. This is just one of the reasons why it is important to keep the tank as clean as possible.

Now, let’s discuss the specific colors that bettas can see. This is another interesting component to the larger question.

What Colors Can Betta Fish See

Knowing which colors bettas can actually see under ideal conditions can prove fascinating. This is partially due to the fact that it is widely believed bettas can see not only as many colors as we humans can, but that they can also see these colors as well as we humans can.

In fact, they may even see color BETTER than we can! Human beings utilize a trio of cones in their eyes, when it comes to seeing color. These cones allow us to see green, red, and blue. Damage to one or several of these cones can cause an individual to become colorblind.

With bettas, it is believed that they have more than the three cones found in humans. We can see approximately three hundred colors. Bettas can see these, but additional cones give them the ability to see ultraviolet colors, as well. This is something humans cannot do.

You might also be interested in: Betta Fish Tanks: The 7 Best Options in 2020

How Bettas May Perceive Certain Colors

At the end of the day, there is only but so much that we know about the way bettas see color. However, what we basically understand to be true give sus some interesting questions and possibilities. Different colors have different wavelengths of light, with red having the longest wavelengths. The longer a wavelength is, the more quickly it becomes absorbed in the water. In other words, depending on the depth of the water, it can be very difficult, or even impossible, for your betta to see red.

All of this suggests that bettas respond more aggressively to red-colored fish than to other colors. However, there are many exceptions to the rule. We also have to remember that light gets scattered, as it comes into contact with the water. This is yet another factor that can influence how your betta perceives color. How far an object is from the betta can also play a determining factor in not only how/ir they see the color, but whether or not they perceive it to be a threat.

Given that distance is a factor, it makes sense then to give your betta plenty of room to be alone in your aquarium.

As time goes on, we would love to learn more about bettas and their relationship to color.

Gabriel R

Gabriel R

Welcome to Aquarium Fish City(AFC). I’m Gabriel and I have been keeping fish for almost fifteen years. My father was a huge fan of tropical fish and our childhood home had a huge aquarium which he tended and kept hundreds of species of fish over the years. I was always fascinated by our fish tank and would spend hours staring at the fish. They seemed to all have different personalities and would interact differently with one another. Here, you can find out everything you need to know about keeping fish and aquarium maintenance.

Otocinclus Care 101: Complete Guide For Aquarium Hobbyists

Otocinclus catfish
Credit: Mário Gomes

Besides being aesthetically-pleasing, the Otocinclus is also celebrated for its ability to eat algae. In fact, these delightful fish, also known as otto catfish, are considered to be some of the best around for eating algae in your aquarium. Combine this with their friendliness, and it becomes easy to understand why so many consider these fish to be an essential part of any thriving tank.

Why Do People Love Otocinclus?

The fact that Otocinclus are so easy to care for is another reason why people are so fond of them. They are an exceptional choice for those who are just beginning to build their very first fish tank.

At the same time, it is also easy to neglect them. Many lose their Otocinclus in the first month, and there is certainly no reason for this. Caring for them is extremely simple, but there are still a number of things you are going to want to keep in mind. This includes getting the best tank, ideal aquarium roommates, the best plant life for otto catfish, and much more.

If you are new to the world of Otocinclus care, not to worry! We’re going to tell you everything you need to know about these freshwater beauties. From there, we can also discuss the basics of bringing them home for the first time.

What Exactly Are The Otocinclus?

First, let’s start with an overview of exactly what we’re talking about, when we talk about the otto catfish.

Belonging to the Loricariidae fish family, the Otocinclus represents a genus of catfish with a freshwater background. It is estimated that there are nineteen different species of the otto catfish. They are noted for their easygoing demeanor, relative hardiness, and for coming in a wide variety of styles and colors. For these reasons, as well as many others, they are widely considered to be one of the top fish choices for a beginner aquarium.

They have a lifespan of roughly three to five years, rarely measure more than one to two inches, and can often be identified by the presence of a brown stripe. Most otto catfishes are going to have that stripe somewhere along the body.

Suitable for a peaceful family aquarium situation, these fish are herbivores. This means you’re going to have a lot of different options for feeding them. That is yet another feature to the Otocinclus that people seem to appreciate.

Some also like to call them dwarf suckers. They can be found throughout freshwater sources in South America. This extends to Venezuela and North Argentina.

Everything Else You Need To Know About Otocinclus Appearance

We’ve mentioned the brown stripe that can be found along many examples of the otto catfish. However, there are a few more pieces of information on their appearance that is worth covering in greater detail.

While you want a tank large enough to keep them comfortable and happy, one of the main things to remember with these fish is that they are very small. They rarely grow to exceed three inches in size. You might be interested in learning that they have distinctly strong mouths. This makes latching on to things a good deal easier for them. It also partially explains why otto catfish are so good at eating algae. Their bodies are generally cylindrical in shape, and you can also always spot this catfish example by the presence of armor plating all over their bodies.

With a limited ability towards breathing air, telling the difference between males and females can be a little tricky. As a general rule, females are usually broader in their sizing.

Credit: Gary Kinghorn

What About The Different Types Of Otocinclus?

Another nice thing about this type of fish would be the fact that there are so many different colors and types to choose from. In terms of things like size and behavior, you’re not going to see too many differences from one type to the next. One example of an exception to this would be the Otocinclus flexilis. This particular offering is on average the largest of the different types, with an average of roughly 2.2 inches.

Here are a few examples of different types of otto catfish:

  • Common: Noted for being a prominent member of the Amazon River, the Common Otocinclus, as the name implies, is the most common of all the different types. Speckled brown in appearance along the top, and then white along the bottom, you will also want to keep in mind that their fins are almost completely transparent.
  • Golden: If the brown looks more like a golden color, you probably have a Golden Otocinclus.
  • Zebra: You can probably picture exactly what the Zebra Otocinclus looks like, just from the name alone!
  • Silver: The brown stripe here is very interesting, as it tends to be silverer in appearance.
  • Dwarf: The best way to distinguish these from Common Otocinclus comes down to the caudal fins. The design will be very different on the Dwarf Otocinclus.

A Few More Notes On Important Examples Of Otocinclus Behavior

In terms of Otocinclus behavior traits, the key phrase to remember is the following: Lowkey.

By their nature, Otocinclus prefer to avoid trouble. They are not aggressive in any form or fashion. Their preference will always be to stay out of the way of anything else you may keep in your tank. This is another reason why people like them for aquariums of all experience levels.

At the same time, their avoidance behavior can create its own potential problems. This is really only the case if your tank is too small. Chances are, you are going to have more than just a single otto catfish in your tank. The recommended size for any aquarium that is going to include these fish is at least ten gallons.

For a variety of reasons, particularly in terms of comfort, as well as room to grow your tank, many experts suggest instead opting for something in the 20-gallon range. The choice is ultimately yours to make, but stay away from anything smaller than ten.

Otocinclus tend to be very skittish around larger fish. There is a reason for this, owing to the fact that many other fish see them as a potential snack. While this is something to keep in mind with regards to otto catfish tankmates, it also goes a long way towards explaining their behavior. If something scares them, they will almost certainly swim away very, very quickly. This is good for avoiding predators, but it can make catching them a pain!

They tend to hang out along the bottom of your tank. You can also find them along the surface of any plants or decorative items you may have in the tank. Remember that above all else, their favorite thing to do in the whole world is eat algae. They prefer to do this in groups, grazing casually throughout the day. If there is no algae to be found, they will simply move on to seek out another surface. Take note that groups of Otocinclus get along just fine with one another.

At this point, we can really start to dig into everything you need to remember, if you are planning to buy Otocinclus for the first time.

Otocinclus Affinis

How To Build The Perfect Aquarium For Otocinclus

Because of their hardiness to tank conditions, as well as their fairly simple needs, shopping for a suitable tank for Otocinclus is fairly straightforward. Because they come from South American, their needs are going to be mostly the same as what you’d suspect from freshwater fish. They need something for the bottom of the tank, appropriate roommates, access to light, some plant life and other decorative accessories, and lots of room.

We’ve already covered the importance, but let’s keep a few more things in mind.

For instance, the finer the grain, the better, when it comes to what to put on the bottom of the tank. A coarse grain may cause harm to their bodies, remembering how much time they tend to spend along the bottom of the tank. You’re also going to want to be sure they have things like rocks, bits of wood, and other plants that offer hiding spots and lots of yummy algae. You’re going to want a temperature somewhere in the range of seventy-two to seventy-nine degrees Fahrenheit. The most comfortable pH level for the Otocinclus is going to be somewhere between 6.8 and 7.5. You’re going to want to keep soft water in your tank, with the levels never getting any higher than 15dH.

Also, in case you were wondering, a 10-gallon tank can comfortably hold anywhere between four and six of these fish. Again, if you’re planning to add some other fish to the aquarium, you’re going to want to go bigger than ten gallons. Twenty gallons will give you room to grow, while also letting you get a nice collection of fish right from the start.

Which Fish make The Best Tankmates For Otocinclus?

Now, at this point, you’re probably wondering if it’s a good idea to shop for other fish to keep your Otocinclus company. While the otto catfish doesn’t really care one way or the other, there are in fact several different fish that can work well in the tank with them.

As a good general rule, we would suggest avoiding large fish, or any fish with a notable trait of being aggressive. So, for example, betta fish are probably not going to be good tankmates for your Otocinclus. Many examples of cichlids are not going to be appropriate for sharing quarters with your Otocinclus either.

So, which ones are going to be okay? Beyond invertebrates like snails and shrimp, guppies, mollies, tetras, cherry barbs, and Corydoras catfish are all great options that are worth exploring in greater detail.

Also, remember that otto catfish do very well indeed together. If you’re planning to have more than one, and you really should, the accepted minimum is considered to be four.

Resting on Java

What Are The Best Things To Feed My Otocinclus?

Thanks to the fact that they are herbivores, you’re going to find yourself with a variety of appealing options for what you can feed them.

As we’ve touched on a few times, Otocinclus love to eat algae. This makes them ideal for keeping the stuff out of your tank, but it also means you’re giving them a ready-made food source. However, while they do love to eat algae, something they do in the wild, you do not want to only feed them this. They are going to need a rounded diet, and you need to make sure that diet will meet all of their herbivore nutritional needs. No live animals, or indeed anything that comes from something that was once living.

In terms of things you can feed them besides algae, you might be surprised by just how many options are really out there. Click here to check out a complete guide to feeding your Otocinclus. A varied diet will keep them healthy and happy for the entirety of their average lifespans.

A Few Final Otocinclus Care Tips

Before we wrap things up, we wanted to leave you with a few more tips and suggestions for ensuring your otto catfish are receiving the very best of care:

  • You don’t want to just leave the algae in your tank unchecked either. You will need to make sure it isn’t overwhelming the tank. This is particularly important with regards to other fish in the aquarium.
  • Disease is not a significantly big deal with this type of fish. Ich is one possible disease they can get, if the tank is not properly maintained at all times. If you notice sluggishness, combined with a decrease in their overall appetite, then there is a good chance that they need to be treated. Quarantine and keep a close eye.
  • Breeding. If the conditions are ideal, males will begin the process by chasing the female around. If they are successful, you should have fry in a couple of days.
  • Make sure to keep their diet nice and varied. This will ensure the best possible health.
Gabriel R

Gabriel R

Welcome to Aquarium Fish City(AFC). I’m Gabriel and I have been keeping fish for almost fifteen years. My father was a huge fan of tropical fish and our childhood home had a huge aquarium which he tended and kept hundreds of species of fish over the years. I was always fascinated by our fish tank and would spend hours staring at the fish. They seemed to all have different personalities and would interact differently with one another. Here, you can find out everything you need to know about keeping fish and aquarium maintenance.