What Do Clownfish Eat?(In the Wild & Aquarium)

what do clownfish eat

A fussy eater is hardly ever the ideal pet to have. 

Thankfully, the clownfish is an omnivore that will relish most of the food you feed it. In fact, it is just one of the few saltwater fish that will readily devour the flake fish food usually reserved for the freshwater kind. 

At the same time, it is very easy to overfeed clownfish, which makes it all the more important to provide a balanced diet. But, do you know what do clownfish eat?

Read on to find out what all you can add to their diet plan. 

What Do Clownfish Eat In The Wild?

Clownfish live among sea anemones in the wild. The signature bright colors of the clownfish lure in other fishes that approach – only to come into contact with the stinging tentacles of the sea anemone. 

The sea anemone then proceeds to eat the poisoned catch, and the clownfish receives the leftovers. Apart from this mutually beneficial feeding strategy, a clownfish relies on algae and small invertebrates for its nourishment. 

Although it spends most of its life swimming among the tentacles of its host anemone, the clownfish will sometimes leave to forage on its own. After all, they are plankton pickers, which means that they will often swim up to feed on zooplanktons and phytoplanktons.

What Do Clownfish Eat In An Aquarium?

Clownfish Flakes 

Just like any omnivore, a balanced diet without vegetables is incomplete or, at least, unhealthy. Introduce healthy greens to the clownfish by adding algae and seaweed sheets to its diet.

Also known by different names, such as nori, these can be attached to a lettuce clip fitted on the wall of the tank via an in-built suction cup. This is an excellent daily feeding strategy if your fish tank includes other species of herbivores.

However, seaweed and algae sheets should be fed regularly only if there is little to no existing algae in the tank. Excess algae growing on live rocks is a definitive sign that the fish can graze for themselves.

Alternatively, some clownfish delight in eating cooked spinach and chard. Add these to daily staples, such as pellets and flakes consisting of high spirulina content.

Can Clownfish Eat Tropical Flakes?

Tropical flakes blend spirulina, minerals, vitamins, and meaty meals, such as fish, squid, shrimp, earthworms, and so on. Evidently, these flakes offer a wide range of essential nutrients from various sources. Therefore, it goes without saying that clownfish can not only eat tropical flakes, but they can reap a lot of benefits with these in their staple diet.

Best Flake Food For Clownfish?

The best flake food for clownfish should be a blend of ingredients suited for omnivorous saltwater fish. This includes ocean kelp, seafood, spirulina, omega-3 acids, and other nutrients that support the immunity of the fish. The best flake foods that can be bought from the store are:

Freeze Dried Foods

Freeze-dried foods are essentially cooked critters, such as bloodworms and krills that have been dehydrated and rapidly frozen to preserve their color and nutrients. Unlike frozen food, these have to be soaked in tank water before they are dropped in to feed the fish.
The rehydration process of freeze-dried food provides them with great soaking abilities. For this reason, some aquarists choose to soak freeze-dried food in liquid fish vitamins for a few minutes before feeding. These vitamin supplements are especially beneficial for fish that get sick often.

Live Foods

Although live foods can make you feel squeamish, some fish species cannot do without them. Live foods for clownfish can include anything from store-bought brine shrimp to mosquito larvae that are freshly scooped out of stagnant water. 

But perhaps the most common live foods for them are amphipods and copepods. You can either culture these small crustaceans or buy them from the store; rest assured, the fish will gobble it all up in seconds.

Alternatively, you can try offering your clownfish earthworms – however, this can be a hit or a miss. Begin by washing the earthworms and chopping them up into bite-sized pieces. Then, drop one in the tank and monitor how the clownfish reacts. If they avoid or ignore the feed, promptly remove them from the tank. 

Feeding Tips For Clownfish:

Tips For Fussy Eaters

Although clownfish are considered to be beginner fish primarily because of the ease of feeding them, getting a picky eater is not unheard of. Underlying reasons could be anything, be it illness, stress, or personality. 

Nevertheless, you can try experimenting with different kinds of fish food to see if the fish has a personal preference; usually, most fish go crazy for live food, such as brine shrimp. If all fails, try adding an appetite stimulator to the fish food before dropping it in the tank.  

Maintaining A Clean Tank

If you tend to sprinkle in more fish food than required, don’t forget to scoop up the remains that the fish could not eat. Apart from wastage, the leftovers quickly collect at the bottom of the tank and soon lead to murky waters. 

Alternatively, you can introduce snails, starfish, and crabs to your clownfish aquarium. These sea creatures not only enhance the aquarium’s aesthetic appeal, but they act as a cleanup team that feeds on the leftover scraps of food.

Feed Away From Water Flow

Strong water flow will wash away the fish food you drop into the tank, making it difficult for the clownfish to catch flakes or food pieces. With that being said, remember to feed in areas that are away from filtration systems or any other device which causes water flow.

Blend Your Own Frozen Food

Some aquarists prefer to know what exactly goes into the food they are feeding to their precious clownfish. Although there are many high-quality products on the market, you may blend together your own selection of nutritious fish foods, freeze them, and save them for feeding time. 

How Often To Feed Clownfish?

Adult clownfish should be fed once or twice a day – depending on how much you provide them. As a rule of thumb, it is recommended you only put enough food that they can eat in 3 minutes. However, if you are feeding them only once a day, leave enough food for a 5-minute feeding window.

At the same time, scattering feeding times throughout the day might be a better plan, rather than dumping a large quantity at one go. In any case, it is easier to overfeed fish than to underfeed them.

Do Clownfish Eat Their Babies?

Clownfish are a subject of interest for many because of their gender-bending capabilities and their tendency to eat clownfish babies. Anyhow, they are considered to be territorial and aggressive to their own species. In fact, it is common to see a bigger clownfish chasing away younglings from anemones.

However, a clownfish pair does protect their eggs until they hatch after approximately four days. Once they do, the couple take no part in rearing the fry. In fact, the younglings are left out to be swept away, or eaten by other fish or their own parents!

Do Clownfish Need Anemones?

In the wild, clownfish and sea anemones have a symbiotic relationship; they strategically work together to hunt other critters for food.

Accordingly, the clownfish acts as a colorful and attractive bait to lure in the catch, which comes closer only to be stung by anemone tentacles. Interestingly, the clownfish itself has a mucus covering that protects it from the toxins released by the sea anemone.

But when it comes to clownfish in captivity, they do not necessarily need the sea anemone for protection or food. However, some aquarists do pair clownfish with sea anemone for aesthetic purposes.

How Long Can Clownfish Go Without Eating?

Although overfeeding clownfish may be easier than underfeeding them, the latter isn’t a healthy alternative either. With that being said, clownfish can go up to seven to nine days without eating, but this dramatically compromises their health and immunity.

At the same time, it is commonly agreed that smaller and younger clownfish are less likely to survive extended periods without nourishment, unlike full-grown ones.


From freeze-dried and frozen food to nori sheets and live wriggly worms, it is easy to spread out a buffet of items for clownfish. And while they are omnivorous in nature with little self-control when it comes to eating, they are also easy to overfeed for the same reason. 

Therefore, aquarists are advised to put forethought and carefully plan how much and how many times in a day they will feed their clownfish. Also, keep in mind the size and age of each clownfish before setting a schedule.

Apart from this, you should have no problem feeding these foodies of the sea!

The 10 Most Popular Types of Cory Catfish (Species & Pictures)

Types of Cory Catfish

A staple and widely popular fish in the aquarium world – Cory Catfish is the active day dweller that will make your fish tank lively.

Unlike the bottom-dwelling aquarium fish that prefer hiding the entire day, Corys chase each other around while scanning their surroundings. Then again, they thrive even when held in captivity, making the most out of the water conditions.

And with the right kind of food, you’ll see your home aquarium flourishing within no time. But for that, you’ll need to know about the different types of cory catfish – easily found in pet stores. 

So, without further delays, let’s dive in!

Panda Cory (Panda Catfish)

Panda Cory
Photo: Brandon Heyer

The pale white body with prominent black markings resembling that of a panda is why this catfish is widely known as – the Panda Cory. Native to the Peruvian Amazon, these fish prefer warmer conditions ranging somewhere between 75 and 85 degrees Fahrenheit.

Temperatures below this range will only make them lethargic. Of course, it will also increase the risks of ich, body fungus, and fin rot. Besides temperature, check your tank water chemistry – acidic to neutral water with a pH level of 6.0-7.0 should be ideal.

It’s also important to keep in mind that Panda Corys are social, so raising a single fish may make it feel exposed. Instead, place them with other Corydoras of the same kind.

Scientific Name:Corydoras panda
Origin:Asia, Captive-Bred
Care Level:Easy
Color Form:Black, Yellow
Temperature:72-79° F
Minimum Tank Size:30 gallons

Pygmy Cory Catfish

As a nano fish species, Pygmy Corys make themselves at home even in 5 to 10-gallon tanks. Just make sure you provide them with companions as they tend to form shoals and swim around, even if it’s in the midwater.

You’ll be able to tell the adults apart by simply looking at them as they are sexually dimorphic. While the females are visibly plumper, reaching up to 1 inch in length, the males grow only up to 3/4th of an inch.

That said, they are a peaceful species of fish that get easily intimidated by larger aggressive fish like Cichlids and Barbs. So, as far as it goes for tank mates, keep them with other nano fish like the Pea Pufferfish and Chili Rasboras.

Scientific Name:Corydoras pygmaeus
Origin:Tank-raised, but indigenous to India
Care Level:Easy
Color Form:Silver
Size:Up to 1″
Temperature:72° – 79° F 
PH:6.4 – 7.4
Minimum Tank Size:10 gallons
Compatibility:Small peaceful community

False Julii Cory Cat

Photo: moi.fish

Most commonly found in pet stores, the Julii Cory is a hardy, small, and uniquely patterned fish for beginner aquarists. It rarely grows larger than 2 inches, so you may easily keep a small group in a 10 to 15-gallon tank. However, a 20 to 30-gallon tank is more practical for keeping 6 to 12 of them together.

Just don’t confuse it with the False Julii Cory or Corydoras trilineatus – you can tell them apart by their “almost” similar patterns. The actual Julii Cory comes with distinct spots on its head and flanks.

Scientific Name:Corydoras julii
Origin:Farm Raised, USA
Care Level:Easy
Color Form:Black, White
Temperature:72-79° F 
Minimum Tank Size:30 gallons
Compatibility:Small peaceful community

Peppered Cory Cat

Native to the eastern parts of South America, the Peppered Cory is another catfish species suitable for beginners.

They grow up to 2 1/2 inches in length, and when kept under bright yet stressful conditions, they are typically cream and grey in color. But what makes them stand out is their faint green textured body that may seem like a glow under subdued lighting.

Moving on to their nature, Peppered Corydoras are peaceful and breed easily in alkaline waters. In fact, they adapt well even in captive conditions, provided they are fed live and frozen foods in regular intervals.

Scientific Name:Corydoras paleatus
Origin:South America
Care Level:Easy
Color Form:Black, Green, White
Temperature:72-79° F 
Minimum Tank Size:10 gallons

Bronze Corydoras

Photo: mugley

Bronze Cory is widely found throughout South America, but there is a mystery surrounding its origin. That said, the first species was discovered in Trinidad, and it’s from there that the Corydoras aeneus gets its name.

These Corys are hardy and feed on all kinds of prepared, live, and frozen food, making them easy to care for. And if you want your fish to spawn, feed them small invertebrates, including tubifex, brine shrimp, and blood worms. You could also provide them with micro pellets, flakes, and other types of fish food.

Scientific Name:Corydoras aeneus
Origin:Argentina, Colombia, Venezuela
Care Level:Easy
Color Form:Black, Green, White
Temperature:72-79° F 
Minimum Tank Size:10 gallons

Albino Aeneus Cory Cat

Photo: a_fishstore

You’ll find the Albino Cory Catfish in the tributaries of the Amazon river – easily identifiable because of its pink or white color pattern with multiple barbels around its mouth. Now, when it comes to breeding this fish species, you’ll need to keep them in a spacious 30-gallon tank having slightly acidic water with pH levels between 6.0 and 7.2.

It’s also important to maintain the water temperature between the range of 72 and 79 degrees Fahrenheit. However, a sudden 20% decrease in temperature can help them spawn faster.

Scientific Name:Corydoras aeneus
Origin:South America
Care Level:Easy
Color Form:Red, White
Temperature:72-79° F 
Minimum Tank Size:30 gallons

Skunk Cory Cat

Photo: Pia Helminen

Yet another easily identifiable species – the Skunk Cory Catfish have a squashed, short nose with broad cream or pink flanks and dark stripes along their backs. But what makes the fish stand out is its metallic golden hues on its gill covers.

Now, breeding this catfish is a bit challenging; however, it’s not impossible, provided you maintain the temperature of the soft, acidic tank water between 78 and 84 degrees Fahrenheit. Also, give them a lot of frozen and live food.

Scientific Name:Corydoras arcuatus
Care Level:Moderate
Color Form:Black, White
Temperature:68-77° F 
Minimum Tank Size:20 gallons

Emerald Green Cory Cat

Photo: akeveryday

The chunky body, elongated nose, and spectacular coloration make the Emerald Cory among the most desirable kinds of catfish. In fact, this is one of the biggest Corydoras that grow up to 4 inches. 

As such, a 30-gallon tank will be needed to help them move around comfortably. Coming to the ideal aquarium conditions, Emerald Corys prefer neutral to acidic water, but they can also easily adapt to varying chemistries, provided the temperatures remain within the range of 78 to 86 degrees Fahrenheit.

Scientific Name:Brochis splendens
Origin:South America
Care Level:Easy
Color Form:Clear, Green, White
Temperature:72-79° F 
Minimum Tank Size:30 gallons

Sterba’s Corydoras

Photo: n0r1z0

The bright pectoral spines and delicate reticulate patterns make it easier to identify the Corydoras sterbai. Earlier, they were expensive, but today, aquarists can get them from a pet store without burning a hole in their pockets. 

Now, the original specimens of this catfish were sensitive to ammonia and nitrates. That’s why it’s better to breed tank-raised fish as they are hardier and more than willing to spawn in less than ideal conditions. They will grow up to 2 ½ inches even in alkaline water, but acidic, soft water conditions ensure better breeding responses.

Scientific Name:Corydoras sterbai
Origin:Brazil, South America, Upper Rio Guapore
Care Level:Easy
Color Form:Black, Tan, Yellow
Temperature:70-77° F 
Minimum Tank Size:30 gallons

Leopard Cory Catfish

Photo: torinointegrazione

Most commonly known as the Three Stripe Corydoras, the Leopard Cory Catfish is a peaceful fish species that can grow for 2 to 3 years. It’s characterized by its pale grey silvery color and narrow dark stripes almost resembling a leopard. That’s one of the reasons why it’s so popular in the aquarium community.

In fact, breeding this fish species is easy – all you have to do is feed them well with tablets and sinking pellets. The diet should also be supplemented by freeze-dried and live fish food like worms.

Scientific Name:Corydoras julii, Synonym Corydoras leopardus
Origin:South America: Central Amazon River basin
Care Level:Easy
Color Form:Silvery Gray
Temperature:72-79° F 
Minimum Tank Size:10 gallons


Can You Mix Different Types Of Cory Fish?

Ideally, Corydoras are peaceful and social types of catfish that prefer their own kind. But it’s possible to mix different types of Cory fish in a big aquarium – just get three to six of each species, be it Panda, Sterbai, Albino, or Peppered Cory fish.

How Many Corys Should I Keep In One Tank?

You can keep up to eight Cory Catfish in a small or average-sized fish tank. Start by adding one fish per gallon; refrain from adding multiple fish at the same time in a new aquarium. 

A larger fish tank of over 30 gallons will be sufficient for breeding more than 12 Corys. Just keep in mind that they should be kept in groups of 5 or 6.

What Types Of Cory Catfish Do Well In Hard Water?

Cory Catfish can survive in hard water provided you maintain the ideal temperature conditions and pH levels (6.0 to 8.0). Most commonly, Bronze Corys remain quite active despite the hard water parameters. However, they fail to thrive compared to soft water conditions. 

Is It Possible For Two Different Types Of Cory Catfish To Mate?

Yes, two different types of Cory Catfish can mate. That’s why it’s important to make a careful choice while keeping a variety of Corys together for interbreeding. 


That brings us to the end of our list, and it’s time for us to bid you farewell.

But before that, we’d like to leave you with a few pro tips. Now, as popular and desirable aquarium fish with a peaceful temperament, most types of Corys are easy to breed. In fact, you can keep more than one kind of this catfish in your aquarium and breed them in groups.

Just make sure you refrain from having Barbs and Cichlids as their tankmates. It’s better to keep Angelfish, Mollies, Fancy Guppies, Gouramis, and Platies instead. Also, pay attention to their diet – in addition to sinking pellets and tablets, provide them with live and frozen foods to grow well.

That’s all there is to know about the different types of Cory Catfish. We’ll be back soon with more informative guides on other freshwater fish types. Till then, take care.

How To Sex Angelfish? (Male Vs. Female Angelfish)

How To Sex Angelfish

Determining the sex of animals or birds is fairly straightforward. However, it is quite challenging to do the same with Angelfish. 

When you’re learning how to sex angelfish, just looking between its fins is not enough. You need to have a very careful eye and some experience to be able to sex an Angelfish correctly. Fortunately, we are here to help you. 

In this guide, we will tell you the different physical and behavioral factors that can help you correctly tell the sex of Angelfish. This can be extremely helpful if you want to mate or breed Angelfish – or are simply curious to know about them.

So without further delay, let’s begin! 

How to Tell the Sex of Angelfish?

When trying to figure out the sex of an angelfish, there are a few telltale signs. But before we dive into those characteristics, it’s important that you know how difficult it is when Angelfish juveniles can’t be differentiated by gender either!

How to Tell Sex of Angelfish (Based on Appearance)

how to sex an angelfish
Photo: Vineet Bharmoria
Body Shape

The body shape of male and female Angelfish are quite similar. In fact, it can be hard to notice any difference between them if you don’t have a trained eye. Observe the body shape of various Angelfish – the female Angelfish have a sleek, angular body. The male Angelfish, however, have a large, circular body. 

That said, note that certain Angelfish species like the Flame Angelfish are sexually dichromatic; so there is no visual difference between the genders.

Head Shape

Close observation will reveal a slight difference between the head shapes of male and female Angelfish. As such, the male Angelfish have a prominent, noticeable crown or nuchal hump on their heads. However, the female Angelfish have a smooth, smaller, more rounded head with no nuchal hump. This visible difference is most prominently seen on the marble angelfish. 


The head of the female Angelfish is slightly backward and in line with the forehead angle. Also, the line from their dorsal fin to their eye is straighter than the male Angelfish. Conversely, the dorsal portion of the male angelfish is more erect and forms an almost 90-degree angle with the body.


The ventrals of the female Angelfish are typically closer to their bodies and less prominent than their male counterparts. Moreover, the body of the male Angelfish generally forms a distinct angle with the ventrals.

Another physical feature to observe is their bellies. This is easier observed when Angelfish are swimming towards you in a tank. The shape of the female Angelfish’s belly is wider and slightly more prominent than the male angelfish.

Eye/Nose Band

The eyes and noseband is far more visible when the Angelfish reach maturity. It can be fairly challenging to tell the difference between the two genders in young Angelfish. However, you may observe that the eyes of male angelfish are smaller, while the female Angelfish have more prominent, round eyes. 

The male Angelfish also develop a ridge on their nose at maturity. On the other hand, the female Angelfish have a flat nose and mouth, which is in line with their forehead shape.

Breeding Tube

One of the most common ways that people distinguish between male and female Angelfish is to observe their breeding tubes. Of course, you will have to wait till the fish reach maturity to do this, as baby Angelfish do not have descended breeding tubes. Moreover, the breeding tubes are most prominent when they are spawning, so this is the best time to observe them.

The male Angelfish have a thin, pointed breeding tube that is less prominent than the females. On the other hand, the female breeding tube is more circular and prominent. These tube-like appendages are located in between the fins.

However, they are relatively difficult to spot, so ensure that you observe the fish carefully.

You might also be interested in: How Long Do Angelfish Live?

How To Sex Angelfish (Based On Behavior)

Watch Them As They Swim Towards You

Angelfish mature at about 6 to 12 months. During this time, they will begin to pair off and spawn. This is the best time to observe the breeding tubes carefully. However, their spawning habits will also help you determine which fish are carrying eggs and which ones are fertilizing them.

However, keep in mind that same-sex Angelfish will sometimes try to spawn – although it will be unsuccessful. It is best to observe the spawning habits over a period of time to accurately sex Angelfish.

Observe Their Pairings

As we mentioned above, it isn’t very uncommon to find same-sex Angelfish attempting to mate. This may confuse some observers who are trying to determine the sex of these fish.

However, male Angelfish are typically more aggressive than their female counterparts. Although this aggression is mainly directed towards other male members, it can sometimes be directed towards females as well.

You can introduce new, mature Angelfish into your tank to try and get them to mate. However, Angelfish can be very picky when choosing a mate and may not be happy with your choice.


It is vital to note that even experienced fish keepers may sometimes have trouble determining the sex of Angelfish.

These fish species look eerily similar regardless of their gender. However, it is easier to determine their sex when they are spawning, as their breeding tubes are more prominent, and their mating behavior can be charted more easily.

As such, it is best to keep a written record that you can refer back to when trying to sex Angelfish. You can also introduce other Angelfish into the tank when they reach maturity – in an attempt to get them to mate.
Note that this attempt may not always be successful, and the fish may end up showing aggressive behavior. However, it’s worth a try!

How Big Do Angelfish Get? (+Best Tank Size Guide)

How Big Do Angelfish Get

Angelfish are beautiful freshwater and tropical aquarium fish commonly bred in captivity by most aquarists. 

But does that restrict its growth? Here’s where you’ll find the most relevant answer to this question. 

Today, we’ll be highlighting the different types of angelfish, their common (adult) sizes, and minimum aquarium size requirements. We’ll also talk about how they grow in the wild and the common angelfish tank sizes.

Before that, let’s address the elephant in the room: how big do angelfish get? So, dive right in!

How Big Do Angelfish Get In Fish Tank?

Ideally, angelfish can grow up to six inches long, so they should be kept in a fish tank with a capacity of at least 20 gallons. A larger tank offering a larger capacity would be even better. 

It’s also important to keep in mind that this fish species tends to grow taller rather than longer. So, while investing in a fish tank, ensure that it’s more tall than wide. 

That being said, it’s now time we take a deeper dive into the different types of angelfish, their sizes, and the ideal fish tank size for each.

Koi Angelfish Size And Ideal Tank Size

The Koi Angelfish (Pterophyllum scalare), usually bred for its mottled black and white color combination. 

How big do koi angelfish get? The adult Koi Angelfish grows up to 6 inches long and 8 inches wide during its lifespan of 10 years.

For it to breed, you’ll need to house a number of freshwater Koi in the same tank. So, it’s better to get a well-planted aquarium having a capacity of at least 30 gallons. This will give them ample space to move around freely in the slightly acidic yet soft water. 

When you notice them pairing up, switch to a tank of 40 gallons for each pair, but for a group, you’ll need a larger aquarium.

Altum Angelfish Size And Ideal Tank Size

The Altum Angelfish (Pterophyllum altum) is among the largest angelfish species that grows up to 7 inches in length during its lifespan of 10 to 15 years. These fish are very tall, and with their extensive fins, they measure 9 inches in height.

So, to accommodate Altum Angelfish’s size, we’d suggest a 55-gallon fish tank. This will provide your angelfish ample room to swim around freely, but if you’re planning on breeding a pair or group of them, a larger tank of more than 60 gallons would be required.

Coral Beauty Angelfish Size And Ideal Tank Size

The Coral Beauty Angelfish (Centropyge bispinosa) grows up to 4 inches in size, which is among the smallest types of angelfish. That’s why it’s commonly known as the hardiest dwarf marine angelfish.

Now, these fish are easy to care for, but they don’t breed well in captivity. Moreover, despite being peaceful in nature, they tend to get aggressive with other saltwater angelfish when bred in a smaller tank. That’s why it’s advisable to get a large tank of 30 gallons or more for them to thrive.

Bicolor Angelfish Size And Ideal Tank Size

The Bicolor or Two-Color Angelfish (Centropyge bicolor), known for its yellow and royal blue coloration, is another dwarf angelfish. The Bicolor Angelfish grows up to 6 inches in size and are extremely aggressive, making them difficult to breed in captivity.

You can only keep one fish per tank; if you wish to breed a pair or a community, an extremely large aquarium will be needed. A tank of more than 30 gallons should be ideal for this species; just ensure that it isn’t a reef tank.

Black Angelfish Size And Ideal Tank Size

The stunning Black Angelfish breeds well in captivity and the adult can grow up to 6 inches in size with their thin fins extending the length of their body. 

This species is a bit aggressive in temperament, so you’ll need to keep them in a big fish tank. We’d suggest a 30-gallon (minimum) aquarium; the bigger, the better.

Dwarf Angelfish Size And Ideal Tank Size

The Dwarf Angelfish are mild-tempered, marine fish that can grow up to 4 inches in captivity. They adapt well even with other angelfish species, so you can keep them in the same aquarium.

Just make sure you choose a large fish tank of 55 gallons or more to accommodate and allow them to move around freely.

Emperor Angelfish Size And Ideal Tank Size

The Emperor Angelfish (Pomacanthus imperator), native to the Indian Ocean, Red Sea, Austral Islands, and the Pacific Ocean, has an average lifespan of over 20 years. So, you can expect your emperor angelfish to grow up to 12 or 15 inches in captivity. But it’s important to keep them in an extremely large tank with a capacity of around 125 gallons. 

To breed a pair, we’d suggest an aquarium of 180 gallons or more; after all, these fish require plenty of swimming space. You could also include rocks and reefs to provide them with hiding areas.

Flame Angelfish Size And Ideal Tank Size

The Flame Angelfish (Centropyge loricula) is among the most popular dwarf angelfish, which grows up to 4 inches in size. For the fish to thrive, you’ll need to keep them in a 30-gallon live rock tank. But if you wish to include corals, you’ll need a 100-gallon tank.

Golden Angelfish Size And Ideal Tank Size

Next, we have another hardy dwarf angelfish commonly known as the Golden Angelfish (Centropyge aurantia). The simple yet stunning fish is fairly small, growing up to only 4 inches in length. 

Even then, you’ll need a 55-gallon tank as they require more space to swim and places to hide. But the good thing is that they are peaceful tank mates, allowing you to breed other angelfish species in the same tank.

Lamarck’s Angelfish Size And Ideal Tank Size

Lamarck’s Angelfish, aka Freckletail Lyretail Angelfish (Genicanthus lamarck) is among the hardy fish species, which can grow up to 10 inches in size. They serve as excellent candidates for reef tanks with a capacity of 100 gallons or more

Moreover, these fish are peaceful tank mates, so they can be bred with other fish types. Just make sure you don’t keep any small fish or docile planktivores, such as flasher wrasses and fire gobies, in the tank as angels tend to chase after them.

Marble Veil Angelfish Size And Ideal Tank Size

The diamond-shaped Marble Veil Angelfish can grow up to 6 inches in length and 8 inches in height. That’s why they need to be kept in tall tanks with a capacity of 30 gallons or more. And if there are two or more of them, you’ll need a larger aquarium. 

Being peaceful tankmates, you can breed these angelfish with other freshwater fish. Just ensure that there are no small fish present in the tank as they tend to eat them.

Platinum Angelfish Size And Ideal Tank Size

Platinum Angelfish (Pterophyllum sp.), originally derived from Golden Angelfish, is selectively bred in aquariums. They can grow up to 6 inches in size when kept in a large 30-gallon tank. 

It’s best to keep them in pairs in small to medium-sized aquariums. However, you can also breed six or more of these fish in larger fish tanks.

You might also be interested in: How Long Do Angelfish Live?

How Big Do Angelfish Get In The Wild

Angelfish are the most popular tropical aquarium fish species native to South America. But when allowed to grow in the wild, rather, their natural habitat in the Amazon River Basin and Orinoco Basin, these fish can grow up to 10 inches long and 12 inches tall (or even bigger). 

The easy availability of natural food sources like brine shrimp, bloodworms, crustaceans, white worms, and insects contribute to the bigger growth. Plus, they get more space to swim around freely in the wild.

Common Angelfish Tank Size

When small, measuring just 1 or 2 inches in size, Angelfish can comfortably live in a 20-gallon tank along with fish of the same or different kind as they aren’t too aggressive. But as they grow, you’ll need to replace it with a 30 to 55-gallon tank, depending on the different kinds of angelfish.

It would be even better if you could get a 75 to 100-gallon tank, especially if you wish to breed a group of six or more common angels. A larger aquarium with a community of angelfish will help them choose their mates.


That brings us to the end of this brief informative guide on angelfish. Like most aquarium fish, the freshwater fish from the Cichlidae family can be bred easily in captivity. But they thrive more in the wild owing to the availability of more open space and natural food.

Even then, they can grow quite tall in a fish tank, provided you meet the minimum tank size requirements for each of its kind. That said, always keep in mind that it’s better to get a large aquarium than a smaller one.

On that note, we’ll take your leave. Just make sure you consider factors like water quality and fish food besides tank size to help your angelfish grow even bigger!

Can Angelfish And Guppies Live Together? (What You NEED To Know)

Angelfish And Guppies

Most of you would love to put a lot of different species of fish in your fish tank. However, it is essential that you know which fish are compatible with each other.

Guppies are some of the friendliest fish. One reason why beginners are recommended to start with guppies is that they are easy-going and low maintenance. Guppies easily mix well with other fish in the tanks.

Having features similar to guppies, another friendly fish is angelfish. However, a common question that comes to your mind is: Can angelfish and guppies live in the same tank?

This article is going to answer the question for you.  So keep reading to find out more.

Can Angelfish And Guppies Live Together?

Guppies and angelfish cannot live together because angelfish tend to become aggressive as they grow up. Furthermore, the fully grown angelfish are much bigger than guppies. Therefore, they like to chase and attack the small guppies.

Besides, it is not safe for guppies to stay with angelfish as the latter display predatorial instincts. That being said, there are a number of factors that contribute to why you shouldn’t keep these two fish together.

Why Keeping Angelfish And Guppies Together Is A Bad Idea?

Being different in size is not the only reason why these two fish must be kept separately. Read on to get the details on the multiple reasons why angelfish and guppies together is a bad idea.


The temperament of guppies and angelfish is quite different from each other, and it affects guppies.

Undoubtedly, guppies are known for their peaceful nature and can blend well with other fish in the tank. However, this is not the scenario with angelfish.

Angelfish often get aggressive, specifically when other fish swim along with them. They find it a threat to their territory and thus, attack the other small fish. Sometimes, they even attack each other.

The outcome of keeping these two fish together often ends in guppies being killed, even if they are more in numbers. It is advisable to keep angelfish either with medium or large fish so that they cannot bully smaller fish.

Guppies Will Undergo Stress

If these two fish are kept together, you will find that your guppy will lose its health in no time. It will not be long before angelfish attacks the guppy when left together. The continuous threat from angelfish will cause massive stress to your guppy.

Unlike its name, angelfish instantly develop a bullying nature and occupy a significant section of the tank. Therefore, guppy would be left confined to a small area, and without much freedom, it will struggle immensely to survive.


Angelfish usually grow for about 6 inches when grown to their full size. Whereas, guppies only grow to two inches.

It must not be a surprise that being big, angelfish will find tiny guppies as food. So, there are high chances that angelfish will end up eating your guppies.

Even when the angelfish are not full-grown, they are still more significant in size, and they tend to attack guppies. Moreover, these adorable guppies are not fast swimmers, which puts them at a disadvantage when kept with angelfish.

Besides, it is advised to keep angelfish in pairs, but they must have ample space to stay away from each other. If you plan to keep a couple of angelfish, you must have a tank of at least 30 gallons.

Your Guppy Fry Can Be The Easiest Prey

Guppy fry is relatively tiny when born; they are approximately 0.25 inches. They can easily become prey to even the smallest angelfish.

While the larger angelfish can easily prey on guppies, the smaller ones will attack guppy fry. In simple words, none of the guppies can be safe with any size of angelfish.

Besides, angelfish are pretty swift, which makes them good hunters. Irrespective of décor and plants in the aquarium, it is not easy for guppies to hide for long. Moreover, once they are discovered, it will be very difficult for a guppy to survive in the same tank.

Guppies are livebearers, and they give birth to lots of fry at once in your tank. It can be a perfect snack for the angelfish, so it is better to keep them in a separate tank if you want to save them.

Additionally, it can be a problem for your angelfish. They can end up overeating, which can result in constipation.

Different Water Hardness

It will come as a surprise for most of you, but both the fish—guppy and angelfish, prefer different water hardness. Guppies mostly like to stay in soft waters, whereas angelfish comparatively like to stay in hard water.

If the water for both the fish is not maintained accordingly, there are high chances that they will be sick.  Therefore, it is better not to keep the two fish in the same tank.

How Can You Keep Them Together?

Keeping both the fish in a larger tank is not a good option. Even though it becomes harder for guppies and angelfish to cross each other, you cannot guarantee it. However, if you still want them together, it is better to follow the below methods:

Get A Much Larger Tank with Divider

If you really wish to keep them together, it is suggested to get a huge tank. You can use a divider in the tank to keep the two fish. You need to ensure you find the right size of the tank that is approximately 40-60 gallons.

You need to make sure that all the fish can have enough space to grow even after the divider. Getting a bigger aquarium will not only let you keep the two fish together, but you will not need two filters. Plus, you do not have to maintain two aquariums.

Add Plants And Decoration

Another way is by adding more plants and decoration to your fish tank. It will help your guppies to hide more easily from angelfish. While you choose the plants for your aquarium, it is essential to select thick plants.

Thick plants will keep your angelfish and guppies far from their sight. Some of the good choices of the plants include java moss, Anubis, java ferns and hawthorn.

Perhaps, it is suggested not to keep the two fish together. Even after all the efforts, your guppies can become food for angelfish.

Moreover, you can look for a similar size or larger size fish as they are more compatible with angelfish.


If you plan to keep the angelfish and guppies together, it is better to use two tanks or leave the idea. Also, if you do not wish to spend more money on the two aquariums, you can use a tank divider.

The two fish are not suitable tank mates as you will end up losing one of the species. Keeping guppy and angelfish together will be cruel as it is a death sentence for guppies. It is best to use other mates for both species and give them a suitable environment to survive.

Are Angelfish Aggressive? (Angelfish Fighting Guide)

Are Angelfish Aggressive

Freshwater Angelfish are a beautiful species of fish, and they’re extremely popular among fish hobbyists. They are fun to watch, add a lot of charm to an aquarium, and typically keep to themselves. When it comes to add angelfish to your tank, there are many questions that come up such as “are angelfish aggressive?”

In this article we’ll explore what angelfish aggression really looks like and why is my male angelfish attacking the female as well as what is the best thing you could do if your angelfish fighting each other. So keep reading to find out everything you need to know!

Are Freshwater Angelfish Aggressive?

Generally, angelfish have a reputation for being a great tank mate and peaceful community fish in a community aquarium. They are known to get along swimmingly with other tropical species and plenty of other fish. 

Angelfish belongs to the Cichlid family, they are typically most aggressive during their breeding times for a variety of reasons. Female angelfish can also be aggressive in response to protecting their eggs from tank mates, and male angelfish can become aggressive over choosing mates when other males are also looking to choose tank a mate. 

Why is My Angelfish so Aggressive?

Angelfish want to be the dominant fish in your tank. They communicate through chemicals that are released into the water through their excrements, which establishes their status within the tank.

If you’re changing the tank’s water too frequently, you may be forcing them to reestablish their status, causing fights among other fish. 

If your angelfish feels crowded, doesn’t have a place to hide, or is stressed, they may be acting aggressively in response. Angelfish are naturally peaceful yet feisty, so you want to ensure you’re doing everything you can to provide them with their ideal environment. 

Are Angelfish Aggressive with Each Other?

Cichlids are known for being on the aggressive side, with the angelfish being one of the more tame species. There are several reasons why angelfish tend to become aggressive with other angelfish. 

If their environment is not ideal, it can cause stress and aggression. Angelfish need plenty of space, hiding places, and low current in the tank. Being territorial leads to them developing the pecking order and determining the dominant fish.

If you have two male angelfish in your aquarium, they’re more likely to become a lot more aggressive with each other.

Are Male or Female Angelfish More Aggressive?

Both male and female angelfish will be aggressive for different reasons, but typically males are the more common aggressor. Most of the time, angelfish become aggressive over territory in the community tank.

If two or more males are kept together without providing them with enough space, it can get ugly.

Females can become aggressive after spawning, as they want to protect their eggs. 

Why is My Male Angelfish Attacking the Female?

Male angelfish will attack female angelfish over territory, but more likely, it’s usually right before spawning. Pair of angelfish will posture or twitch and attack each other before spawning. If they continue to be aggressive with each other after spawning, the male may have eaten the eggs.

When the male and female angelfish pairs are breeding, it can also appear aggressive, so keep that in mind.

Are Angelfish Aggressive Towards Other Fish in Community Tank?

Angelfish can definitely become aggressive with other types of fish, especially ones that are equally as territorial as they are. It can cause severe stress for them.

Angelfish can also prey to larger omnivores who are also territorial and aggressive fish, like Betta fish.

It’s recommended that you pair angelfish with other Cichlids, Oscars, or other large species that aren’t known for aggression. 

You should avoid take mates that have the tendency to nip, like Serpae Tetras. Since angelfish have long and delicate fins, they can sustain significant damage when other fish chase and nip at them.

Do angelfish eat other fish?  Be careful when adding small fish to an angelfish tank as they will eat any fish that fits. They are omnivores, and any fish that fits in their mouth will likely get eaten, labelling them as a predator.

How To Stop Angelfish From Being Aggressive

As a tank owner, you can do everything right and still have angelfish that’s being aggressive occasionally, but you can minimize the conditions for aggression to occur. 

Add Hiding Places

Since they are territorial, you likely won’t avoid any aggression that comes along with that, but you can do your best to provide plenty of space, a variety of hiding spots, and setting them up in their ideal environment, which can help prevent boredom-related illnesses like fin rot or ich.

Plants are a great choice for hiding places, especially ones with large leaves like anubias. Driftwood and ornaments also make good homes in tanks.

Have More Females Than Males

If you want to have a peaceful angelfish tank, one of the best things you can do is make sure that there are more females than males. 

When there are more males than females, we’ve noticed that they become much more aggressive towards other males when competing for a female. In the meantime, the males are going to be constantly harassing the females, which will cause females more stress. 

In general, you should have 3 female angelfish to every male angelfish. You can always have more females than males in your tank if possible.

Introduce New Fish Properly

When you’re adding new fish to your established tank, especially other angelfish, you will want to introduce them properly. It’s recommended to have them meet as soon as possible to establish their dominance immediately. Many hobbyists opt to get two or more angelfish at once to get the introductions over with. 

Suppose you have a dominant angelfish already when introducing a newcomer. In that case, you may want to consider taking the dominant one out of the tank for a few days, keeping it in a separate tank.

Doing this allows the newcomer to get comfortable with the tank, find hiding spots they like, and meet their tank mates. You can rearrange any decor and then put the original fish back in to avoid fighting. 

Make Sure The Tank Isn’t Crowded Or Too Small

If you’re seeing the aggression becoming a little too frequent, you may want to invest in a larger tank if you feel that’s a contributing factor. Since they’re territorial, not having adequate space can cause stress and aggression. You will also want to keep the current to a minimum as angelfish aren’t overly agile, and it can cause stress.

Make Sure They’re Getting Enough Food

You also need to make sure you’re feeding your angelfish enough. If they don’t get fed enough, then obviously it’s going to start fighting for food!

Feed your angelfish for two minutes at a time. You should be giving as much food as they can eat the whole time, and don’t feed them more than you know they can take of in one sitting (generally about 1 to 2 teaspoons).

Don't Change Water too Frequently

One of the most important ways to avoid aggression is to not change the water too often. Angelfish establish their dominance through the water, their urine, and excrements. If you’re changing the water too often, it can lead to angelfish having to reestablish dominance each time. 


Angelfish(Pterophyllum scalare) are relatively easy to care for, and while they can become aggressive, there’s typically a reason for why they do so. As long as you ensure you’re not cleaning their water too often, you’ve given them ample space and hiding spots, have a low current, and pair them with fish they get along with, you should have no problem with your beautiful new aquarium addition. 

Freshwater Angelfish Temperature Guide (Vital Information)

Angelfish Temperature

Freshwater angelfish are a beautiful addition to any fish tank. These gorgeous, brightly-colored fish can be found in at least 20 different species and colors. If you want your fish to be healthy and thrive, then it’s crucial that they are happy in their environment.

Angelfish originate from the Amazon River Basin and various rivers in tropical South America, so this gives you some indication of the perfect angelfish water temperature.

Best Freshwater Angelfish Temperature

Freshwater angelfish usually require slightly warmer tank temperatures. They can survive in several temps, but 78 to 84 degrees F is going to be the best for your fish. This species can be very sensitive to temperature factors. They notice changes right away, which can shock them if the temperature drops suddenly.

You can easily monitor the tank’s temperature with a heater and thermometer combination. That way, you can quickly respond to sudden changes in your aquarium. The best options for Angelfish will have an easy to see and read display that you set up right on the tank.

 Keeping their tank at the proper temperature takes dedication. You will want to check the tank several times a day until you stabilize it. Once you get a feel for keeping the temperature right, you can start checking it less often. The tank should not change drastically unless you have it near a draft or sunny window.

 Angelfish can survive in colder temperatures but will not have the best quality of life. The lowest they can tolerate is 65 degrees, but you want to keep it well above that. The perfect angelfish temperature is 75 degrees or higher. Overall, keep their tank clean and their water aerated, and they will be perfectly happy.

Best Temperature for Angelfish Eggs & Fry

When your angelfish have eggs, there are two main options. First, you can let the fish care for the eggs. Second, you can take care of the eggs yourself. 

When leaving the eggs with the fish, be sure you know they may eat the eggs and fry. When stressed, angelfish will eat their young. That means you need to provide them with the most suitable conditions.

Angelfish aerate the eggs on their own and will clean them. If you decide to separate the parents from the eggs, you will need to do this on your own.

 The best temperature for hatching eggs is 80 degrees F (about 26.67 celsius). As this is also suitable for angelfish, you can keep the adults with their young if needed.

What Happens if the Angelfish Tank Temperature Becomes Too Cold?

Most Angelfish, like the Altum angel or koi angels, you want to keep the temperature between 82 and 86 degrees. They notice changes easily and will not respond well. Fish are cold-blooded, which means they can not regulate their body temperatures.

 The water can directly impact their metabolism. If the water is cold, they become tired and will swim much slower than normal. Temperature changes also can lead to excessive stress, which can cause death. Fluctuations in water conditions impact their immune system, too, and can make it easier to receive a bacterial infection.

 Overall, it is best to keep the tank’s temperature in a comfortable setting for your fish. While they may have a higher tolerance for various temperatures, you don’t want your fish to be uncomfortable.

What Happens if Your Angelfish Tank Temperature is Too High?

On the other hand, you may accidentally set the temperature too high for your fish. While angelfish have a higher tolerance to warm water than cold, you still want to make the changes as soon as you notice.

Hot water causes the angelfish to have issues with a fast metabolism. They become much more lively and will swim fast in their space. However, they may have issues eating and will feel extreme amounts of stress. 

The biggest problems come when the temperatures go above 90 degrees. Fish breathe through oxygen in the water, which is harder for them to find when it’s hot. As they are moving faster, they need more air- which they aren’t getting enough of. Angelfish can suffocate in this circumstance. 

 Stress caused by hot water can lead to diseases and a suitable environment for bacteria and parasites. If you want to have happy, healthy fish, then ensuring their tank is at the proper temperature is going to be one of the best things you can do for them.

How Do You Maintain the Ideal Temperature in Your Angelfish Tank?

To maintain the ideal water temp for your angelfish tank, you want to spend some time checking it every day. If you keep an eye on the temperature, then you should react quickly when you notice any changes. It’s important to use an accurate thermometer. 

Make sure not to place the tank near open windows or vents. They can cause the temperature in the tank to fall rapidly. Additionally, you need to watch for the sun shining on the tank. It can create a greenhouse effect, leading to a hot aquarium. 

Heavy aquariums are not suitable for desks or normal pieces of furniture. You need something stronger. Not following the weight limits can lead to disasters later! Keep in mind that Angelfish can grow very large, meaning they need spacious tanks to be comfortable.

You will want to spend some time thinking about the best place to put the aquarium. The living room and other central rooms you visit often are usually going to be the best locations. You can check on your fish as you walk past, making it convenient to check on them. 

 The sooner you can check problems with the water- the sooner you can fix them!

Consider Other Fish in a Community Tank

Suppose you plan on raising other species of fish with your Angelfish. In that case, you should also consider what temperatures they can tolerate. Just because other species can live with your Angelfish doesn’t mean they should- you may need to lower the temperature too much.

Keeping your fish comfortable is what’s most important. You don’t want to leave your fish at the ends of their temperature tolerances for too long. In the wild, fish would swim away from these conditions, but they can’t in a tank.

It’s best if you separate fish that require temperatures that are too different. Even if their tolerances overlap, doing so may not be good for them. Make sure to research species thoroughly that you plan on adding to your Angelfish tank.


If you have freshwater angelfish, the best way to take care of them is to check the temperature of their tank often. Serious issues can occur when the water is too hot or cold. These particular species respond to changes very quickly.

Overall, you will want to get a good thermometer for your tank. They make it easier to view the temperature and are going to be more accurate for you. Your fish will be sure to appreciate it! If you want to learn more about fishkeeping, check out the rest of my blog posts.

The 5 Best Guppy Breeding Boxes for 2021

Best Guppy Breeding Boxes

When your guppies become pregnant, keeping the guppy fry alive is an essential part of the breeding process, as guppies are known to eat guppy fry once they’re born. Using a guppy breeding box, whether purchased or a homemade setup, is one of the easiest ways to ensure they survive.

A breeding tank is a separate container off of the primary aquarium that allows free-flowing water. It prevents adult fish from moving into the separate container and keeping the guppy fry safe.

There are plenty of excellent options for guppy fry breeding boxes, but here are some of the best.

Do I Need a Guppy Fry Breeding Box?

The short answer, yes! Guppy breeding boxes are an excellent alternative to creating a secondary aquarium when you have a pregnant guppy.

Save Money

Advantages of a breeding box include being less costly because you don’t need to invest in a second set of equipment, like filters and heaters.

More Convenient & Efficient 

It’s a more convenient option that requires less work, as you don’t have to work to match the water conditions. It’s also more efficient because you don’t need to waste time waiting for the secondary aquarium to complete a cycle before using it. 

Disadvantage of Guppy Breeding Box

The main disadvantage to a guppy breeder box is that it’s only a temporary fix. Guppy fry can’t be in the box for an extended period. Otherwise, it’ll begin to impede their growth. You should only keep your fry in there for two weeks or until they show signs of stress. 

You can then transfer them to an isolated tank or into your established tank if they are big enough. 

The Best Breeding Boxes for Guppy Fish Reviewed

With these pros and cons laid out, here are some of the top breeding boxes for your guppy fish:

The Alfie Pet Breeding and Hatchery Box

The Alfie Pet box is a hang-on breeding and hatchery box that sits inside the aquarium. It boasts a sturdy and functional design, has plenty of room for two adult fish inside. Water can flow through the box, and there is an attached separator.

It’s perfect for being a guppy fry nursery or a separate space for aggressive fish or fish that need to be protected.

There’s no heater, pump, or filter required for this model. It has an excellent design and is sturdy enough for each purpose. 

Alfie Pet - Rabea Hang-on...
  • Dimension: 3" long; 3.5" wide and high.

Marina Hang-On Breeding Box

This affordable hang-on breeding box is perfect for those who don’t want to invest in a filter or heater for a new aquarium. This particular model hangs off the exterior of the tank, and it has a multitude of uses. It has many uses, including a typical breeding box, a separate tank for isolation of adult fish, or an acclimation box.

Due to its excellent design, it’s incredibly convenient if any problems occur that you need to fix without disturbing the other fish. You can also easily monitor the guppy fry without disturbing tank mates. 

The breeding box holds around half a gallon of water, but you can choose other sizes if you feel you need larger. The primary aquarium water cycles through the box. You will need to purchase a separate air pump, which can run anywhere from $10 to $70.

This model includes three removable plates to create partitions so that you can have three separate sections for all your needs. 

Fluval Muli-Chamber Holding...
  • Safe & secure tank for breeding, isolating or acclimating fish

Pets Island Aquarium Fish Breeding Boxes

The Pets Island breeding box is placed into your aquarium and sticks to the glass with suction cups. The box has slits in the sides to allow for water flow, but they are small enough to keep the guppy fry inside.

The clear design allows for easy visibility to keep an eye on your guppy fry or separated fish. The lid is also transparent. 

Included with the box is a removable partition piece that can create two separate sections for your fish. The Pets Island breeding box is smaller in size, so it’s great as a temporary option and should not be used for guppy fry beyond two weeks.

It’s affordable and can be used for multiple purposes, so it’s an excellent option for those looking for a smaller box.

Medium Size Aquarium Fishes...
  • Unique floating and transparent plastic cover designed to prevent the fish out of the isolation room to protect the newborn fish. It is ideal to be sick fish in fish and isolation space With sucker,...

Finnex External Refugium Breeder Box with Water Pump

Purchasing a box that can be installed on the tank’s interior is excellent if you have a sizeable tank with adequate space for a box without causing stress to your other fish.

The Finnex box is another hang-on guppy breeding model that can be installed on the inside of your aquarium. It’s ideal for smaller aquariums that don’t have space for a box without impeding the other fish. The Finnex is a perfect solution for those who have limited space. 

Boxes installed on the outside of the tank are ideal for many reasons, including space-saving, easier to tend to maintenance, and easy to monitor your guppy fry or isolated fish. 

It can also be used as a refugium filter and can be great for both saltwater and freshwater aquariums. The included pump that comes with the breeder box is excellent at regulating the water flow.

It can also be manually adjusted so you can provide the best flow for your guppies. You can also install lights that clip on to create the best environment. 

The Finnex box comes with all the accessories you’ll need, so you won’t need to purchase additional equipment. 

Finnex External Refugium...
  • Multifunction Box: Breeder Box, Refugium, Quarantine

XMHF Nylon Mesh Fish Fry Hatchery and Breeder Box

The XMHF Nylon Mesh breeding box is an extremely affordable alternative to other breeding boxes on the market. If you don’t have the materials at home to build your own, this is an option when you don’t want to spend a lot of money. It has a plastic frame that is surrounded by a mesh net. 

It attaches to the top of the inside of your aquarium with suction cups. When installing this breeding box, ensure the top of the net is above the top of the water. The net is used to keep the guppy fry separate from the mother and other adult fish. 

Since the box sits inside the established aquarium, you don’t need to purchase additional accessories like a heater or filter, and you don’t need to worry about keeping the water parameters in check for two aquariums. 

Along with housing guppy fry, the mesh box can house aggressive fish, injured fish, or weak fish from the others in the aquarium. It’s an excellent and affordable option and a great tool to have on hand if you ever need it. 

Nylon Mesh Fish Fry Hatchery...
  • Product Name: Aquarium Net Breeder

How to Save Your Baby Guppies Without Breeding Box

While a breeding box is an excellent and effective option, there are a couple of other methods that are doable if you worry about that breeder box causes too much undue stress.

Separate Tank

Having a separate tank set up for your pregnant guppies is a more expensive option than purchasing a breeding box or using live plants. If your aquarium is small, this may be the most suitable option for you.

A separate tank should mimic your established aquarium, with the same heater, plants, lights, filter, and same water conditions. 

Once your pregnant guppy is close to giving birth, you can remove her from your aquarium and put her in a separate tank. You can tell that she is getting close when her abdomen becomes enlarged and she becomes reclusive. 

Putting your pregnant guppy in a new tank can be a stressful ordeal, so transferring her carefully and keeping her environment as close to what she’s used to is key to a successful transition. Once she has the guppy fry, remove her from the separate tank and reintroduce her to the primary tank.

Once you have the guppy fry separated, you will need to take great care of them while growing. You will need to feed them properly with protein-rich foods like quality food and baby brine shrimp. Keep a strict feeding schedule. Guppy fry need to be fed frequently with small meals. 

(You may be interested to know how to care for baby guppies?)

Live Plants for Guppy Fry

Live Plants

If you have an established aquarium, you likely already have plenty of lush plants, which is part of an ideal guppy environment. Having a well-planned environment for guppy fry can help them hide and save them from being eaten by the adult fish. Recommended plant types include moss, frogbit, and guppy grass.

A DIY Guppy Fish Breeding Box

If you’re not looking to purchase a breeding box, you can create your own homemade setup for an affordable price. If you have a plastic container, a net, and rubber bands, you can build your own DIY breeding box. 

To create it, take a clean plastic container, put the mesh bag or net over the jar’s opening, and put a rubber band around it. Cut the plastic in half and place the meshed half onto the second half so that it’s face down. 

You will then have a container with two layers that can be secured and held together with your rubber bands. The upper portion of the container sits upside down inside the bottom container.

Fill the container with aquarium water and secure it to the aquarium side with some strong and water-resistant tape. Add some plants, and you can put the pregnant guppy inside your DIY breeding box. 

Once she gives birth, the guppy fry will automatically pass through the mesh netting, so they are separated, keeping the mother in the upper portion of the box. If you have all the necessary materials, a DIY breeding box is just as effective as a purchased one.

Here are some good tutorials:

DIY Guppy Fish Breeding Box: https://www.youtube.com/watch?v=VSTDOypTCm8

DIY Aquarium Breeder Box Fry Keeper: https://www.youtube.com/watch?v=4CfUDOz93Gw


When can I put a pregnant guppy in the breeding box?

Once you notice that her birth time is nearing, you can keep your pregnant guppies in the box. She should be removed 24 to 48 hours after giving birth to prevent her from eating the guppy fry.

How long should I keep guppy fry in the breeding box?

Baby guppies can be left in the box for up to two weeks for them to grow big enough so the adult fish cannot eat them. If you keep them in the box beyond two weeks, it may stunt their growth. If you ensure that the water conditions are optimal, you’re feeding them the best diet, and they are not showing signs of distress, you could keep them in the breeding box as long as you need.

Can two pregnant guppies share a breeder box?

Two pregnant guppies should not share a breeder box once they’ve given birth to give the guppy fry the best chance at survival.

How do I use a guppy breeding box?

A breeder box is the best defense from having the guppy fry eaten by the mother. Breeder boxes are relatively easy to use and maintain, even for new fish owners. The breeder box is a container that has two separate tanks, so when the guppy fry are born, they are separated from their mother, so she does not eat them.

The guppy fry are isolated from her, so they can grow big enough that they can’t fit inside the mouths of the bigger fish.

Can guppy fry die in the breeding box?

Unfortunately, there are many reasons why guppy fry die in the breeder box. To ensure you give your guppy fry the best chance at survival, keep them separate from their mother, keep the water conditions optimal and oxygenated, feed them healthily and adequately, and make sure they’re not stressed.

When can guppy fry leave the breeding box?

Guppy fry can stay in the breeder box until they are an adequate size to prevent being eaten by larger fish. As long as you have optimal water conditions and are not showing signs of stress, you can keep them in the box.

Do Guppies Need A Heater?(Complete Guide 2021)

Do Guppies Need A Heater

Guppies are tropical fish known for their bright colors and larger-than-life personalities. They are an incredibly common fish in the aquarium hobby and are the favorites of many hobbyists around the world.

If you’ve been looking into adopting a school of guppies, you might be wondering how to properly care for them. Do guppies need a heater to survive? If so, how many watts should their heater be? What happens when the water temperature changes too rapidly or gets too high or low?

The good news is that we’ve got the answers to all those questions and more — and we’re going to share them with you in this in-depth article.

Do Guppies Need A Heater?

Guppies are tropical fish and as such, they definitely need a heater. In order for them to live a long, happy life their bodies need to stay warm. Having a heater in your guppy tank will help ensure that your water is always at the best temperature for your fish.

Ideal Water Temperature for Guppies

While guppies do need warm water to thrive, they can’t just be thrown into any warm water. Their water needs to be within a certain temperature range to be suitable.

Guppies need to be kept at a temperature that falls within the range of 72-82 degrees Fahrenheit. They can be kept at temperatures slightly higher or slightly lower without much concern, though. If kept at higher or lower temperatures for too long, though, their immune systems can become compromised, making them susceptible to illness and disease.

To ensure that your water is at the correct water temperature, keep a thermometer in the tank. Put it at the opposite end of where your heater is placed. This allows you to monitor how well your heater is heating the water.

A good rule of thumb is that if your water reads at a comfortable temperature when the thermometer is at the opposite end of the tank, your water is likely heated evenly.

Credit: towert7

What Happens If The Water Gets Too Cold?

Water that is too cold can be disastrous for your guppies. You’ll know when the water has become too cold when your guppies start to show the effects of the temperature.

Symptoms of this include:

  • Swimming sluggishly
  • Acting lethargic
  • Appetite loss

They start to display these symptoms because they are cold-blooded so when the water gets too cold, so does the water temperature of their bodies, which makes them sluggish and slow.

It also causes their body stress, which leads to a lack of appetite as it does in most other creatures on Earth. Paired with the resulting lethargy, appetite loss will weaken their immune system.

When this happens, they’ll start spending more time at the bottom of the tank. If you happen to have more territorial fish that dwell near the bottom of your tank, your guppies can get picked on and injured.

If you don’t bring the water temperature up when it drops too low, your guppy is more likely to suffer from illness and disease thanks to the weakened state of their immune system. Diseases such as dropsy, fin rot, and swim bladder disease are common in fish that live in water that is too cold.

What Happens If The Water Gets Too Hot

Although it’s less likely, your aquarium water getting too hot also poses a risk to your guppies. When the water starts to get too warm, your fish will begin swimming erratically, which is what happens as your fish’s energy levels increase due to the drastic temperature rise.

The energy increase seems like it would be a positive thing but it’s actually a negative. The energy increase is going to stress them out the same amount as if the water were to get too cold. Their immune system can and will get worn down, leaving them vulnerable to health issues.

Luckily, though, it’s much easier to cool a tank down than it is to heat it up. To cool a tank down quickly, you can just add a cup or two of conditioned tap water that is cooler than the water in your tank. Or you could take the lid off the aquarium if you have one on. For long-term cooling, you could consider using a small fan!

How to Set Up a Heater for Guppies 

When setting up your heater, try to place it as close to the filter as possible. This helps the heat from the heater to be dispersed throughout the tank, as the warm water is pushed around the tank by the current of the filter. If you place your heater too far from the filter, you could end up with cold spots within your tank.

Sometimes you might need more than one heater in a tank – for example, if you have a very large tank fish that require particularly warm water, or heaters that are too low of wattage to achieve the desired water temperature on their own.

In cases like this, place one heater on the end with the filter and the other on the opposite end.

What Type of Aquarium Heater Can You Use for Your Guppy Tank? 

Hang-on Back

Hang-on back (HOB) heaters are the most common type of heater across the aquarium hobby. They are affordable and can be purchased as part of a kit of own their own.

This type of heaters hangs on the side of your aquarium, usually using a set of suction cups. The heating element is contained in glass tubing, which is the part of the heater that is inside of the water.

(HOB) heater is ideal for freshwater aquariums, like the one required for guppies, but shouldn’t be used for saltwater.


Submersible heaters are installed below the waterline, meaning that the entire heater is below the surface. It’s made of durable glass or plastic.

It can be positioned within the aquarium any way you choose. You could have it lying down on the bottom of the tank, leaning against a corner of the tank, or standing straight up and down.

For the best results, consider positioning this heater so that it’s on a horizontal or vertical angle, as these positions allow the heater’s internal thermostat to read the temperature of the water accurately.


Substrate heaters are installed below the substrate of your tank. It’s a great option if you have both live plants and fish in one aquarium. This kind of heater works by heating the gravel, which then heaters the water.

The best part of this type of filter is that you’re almost guaranteed to get an even temperature, as the heater stretches across the bottom of most of the aquarium. It’s also buried beneath the substrate, which does wonders for the appearance of your aquarium.

Heaters are a wonderful piece of technology. Their invention meant that fish enthusiasts could start keeping guppies in their homes without worrying about their health or safety. Today, heaters are very sophisticated and versatile.

Since your guppies need a heater, it’s important to ensure that you have a heater that is big enough for your tank and that is safe for all the inhabitants. You can choose between a few different types of heaters, as well as various sizes, so it should be relatively easy to find the best one for your set-up.

Do Guppies Lay Eggs? (3 Fun & Interesting Facts)

Do Guppies Lay Eggs

Guppies make good pets because they are fairly low maintenace, and they are really pretty to look at.  If you’re new to guppy fish keeping then one question you may be asking yourself is “do guppies lay eggs or give live birth?”

This is not a silly question, and many guppy enthusiasts have asked at one point or another. That’s why we thought it was a good idea to put together this helpful guide.

Do Guppies Lay Eggs?

Guppies do not lay eggs. Guppies are what are called “live-bearers” – they give birth to live young instead of laying eggs.

The majority of fish species lay eggs, with only 2% of fish species giving birth to live young rather than laying eggs.

Basically, the guppy eggs live inside of the mothers body and hatch inside her body. Only then are they released. 

So, rather than laying eggs and waiting for them to hatch, a female guppy releases live guppy babies (called guppy fry) into the water. 

A female guppy can give birth to between 10 and 120 guppy fry in 6 hours. That is a big range, and the amount of guppy fry depends on the individual mother.

Guppy Reproduction…How Does it Work?

Guppies reach sexual maturity at around 3 months of age. At this point, a guppy is ready to reproduce.

The gestation period of guppies, or the length of time that they are pregnant, is about 21-30 days

As mentioned previously, one guppy can give birth to 10-120 guppy fry at one time

All of these facts add up to guppies reproducing quickly, and often! They become mature enough to reproduce quickly, are not pregnant for long, and then can give birth to potentially a hundred babies at once!

Guppy have a tendency to eat their fry. Guppies do not care for their offspring like many animal parents do. Once the guppy fry are born, they are on their own!

It is likely that most, or all, of the fry will be eaten by the mother or by the mother or other inhabitants of the tank. Some of the fry may survive if there are enough hiding places in the tank. 

How often Can Guppies Give Birth?

Guppies are also somewhat unique in the sense that from a single encounter between a male and female guppy, the female guppy can store sperm in her body for her lifetime, which allows her to reproduce even if there is not a male in the vicinity.

Once guppies give birth, they can theoretically give birth again about 21-30 days later if they mate with a male. As mentioned previously, their gestation period is about 21-30 days.

This means that your female guppy may give birth as often as once a month. If you have more than one female guppy per tank, you may be seeing hundreds of guppy fry every month whether they are mating with males or just using stored sperm at a later date!

How to Control Guppy Population

Since guppies can reproduce so effectively, you may be concerned about limiting the guppy population in your tank.

For the most part, even if you have females who are giving birth to fry every month, the population is likely to limit itself provided that you have a few things in place.

Separate males and females

This is the most effective way to limit guppy reproduction. If guppies cannot mate, they are less likely to reproduce.

However, we know that this is not 100% foolproof. You may buy female guppies that are already pregnant, or ones that have stored sperm away for a later date.

So even if you get a tank of all females, they may have the potential to give birth!

Have only a male guppy

If you want to avoid guppy fry all together, see about getting just a male guppy. 

If you want several male guppies however, you may run into problems. If several male guppies live together without females, they can become aggressive and start fighting. 

Introduce a predator

Introducing a predator fish, such as a betta fish, will help to limit the population even if females do give birth.

The betta fish will eat many of the guppy fry which will help to limit the total population.

If you do go for a betta fish, be sure to get a single female. Males can be more aggressive and may bother the adult guppies, but a single female will help to limit the population without bothering the adult guppies.

Introducing a fish that is sure to eat it’s tankmates may sound mean, but it is all part of the circle of life. 

Get rid of hiding places

The guppy fry will survive if they have places to hide away from predators.

By limiting the hiding places (like live plants), the guppy fry won’t be able to get away from predators and the adult guppies (or betta if you decide to get one) will make food out of them.

Sell the guppies

If all else fails and you end up with a high population of guppy fry, you can try selling them.

Other people would probably love to buy your guppies, so try listing them for sale on your local buying and selling website.

You might also be interested in: How Much Do Guppies Cost?


Guppies can reproduce often and give birth to potentially a hundred offspring per month.

Female guppies can give birth to over a hundred guppy fry at one time, and can become pregnant immediately afterward. 

They have a short gestation period and can also store sperm for later use – so even if you have a tank of only females, they may give birth at some point!

For the most part, adult guppies and other predators in the tank will control this population by eating the guppy fry. Yes – adult guppies will eat their own babies!

But, if you let the guppy population go unchecked, you could theoretically end up with thousands of guppies in your tank in a short period of time!

Guppies make popular pets because they are so eye catching and usually make good tank mates. It might be worth it to get a single male guppy to add in to your tank to see how you like them at first! Then you can move on to adding female guppies and see how they do!