How Many Cory Catfish Should Be Kept Together in Tank?

You’ve decided to add Cory Catfish to your aquarium, but you’re unsure how many to keep together. A common question that aquarists have when adding Cory Catfish is, “ how many Cory catfish should be kept together?” This is because these fish are often purchased in large numbers for community tanks.

The answer to this question depends on the size of your aquarium and the number of other fish you have. Generally, keeping between one and six Cory Catfish per tank is best.

A fish tank should never be without Cory fish. These little fish are a staple in any community tank and make great additions to any home aquarium. But how many Corydoras should be kept together?

In this complete guide, we will explore the ideal number of Cory catfish to keep together and provide tips on creating a thriving community tank with these little fellows. So read on to learn more!

How Many Cory Catfish Should Be Kept Together?

How many Cory cats should you have in a tank? Keeping at least five cory catfish together in an aquarium is generally recommended. This will help them feel comfortable and reduce stress levels.

Larger groups of cory cats can be kept together, but remember that the more fish there are, the more food and waste they will produce.

How Big of a Tank Do You Need for Cory Catfish?

You don’t need a big tank for cory catfish. A ten-gallon tank would be more than enough.

Cory catfish are bottom-feeding fish that do well in small tanks. They are peaceful and make good community fish.

They will eat algae, fish flakes, and other organic matter from the bottom of the tank, so you don’t need to worry about providing them with food.

Cory fish come in various colors and are famous for both beginners and experienced fish enthusiasts.

However, if you’re looking for a low-maintenance, easy-to-care-for fish, then emerald green Cory catfish are a good option.

Is 1 Cory Catfish Enough?

No, keeping only one Cory catfish in an aquarium is not recommended. Corydoras catfish are social fish and do best when kept in schools.

However, they are vulnerable when alone and can become stressed or aggressive.

That being said, if you only want to keep a single Cory catfish, it is best to get a larger tank with plenty of hiding places and live plants.

This will help your fish feel safe and reduce the risk of aggression.

Can I Have 2 Cory Catfish?

Is 2 Cory Catfish Enough? Yes, two Cory catfish can be kept together in an aquarium. However, keeping at least five cory cats together is still recommended to create a stable social environment.

Two Cory cats can be kept together as long as they are the same species and have minimum tank size, and there is plenty of space to swim and explore.

You should also provide plenty of hiding places and a varied diet to keep your fish’s natural habitat healthy and active.

Can You Mix Cory Catfish?

Yes, you can mix various types of cory catfish. They make excellent community fish and will do well in a tank with other small fish. They’re bottom feeders and are great for keeping the tank clean.

When mixing Cory catfish, it is essential to ensure they are compatible. In addition, it would be best to watch for any signs of bullying or aggressive behavior.

Are Cory Catfish Aggressive to Other Fish?

Cory catfish are generally peaceful and not aggressive to other fish. However, they can become territorial if kept in too small of a tank or with too few of their own species.

Therefore, it is vital to make sure they have enough space and that the other fish in the tank are compatible with them.

In conclusion, Cory catfish are a great addition to any home aquarium. They are peaceful fish and easy to care for but should be kept in groups of at least five.

They do well in small tanks and can be mixed with other small fish, but it is essential to ensure they are compatible.

With the proper setup, your wild Cory catfish can thrive and create a thriving community tank.

Best Cory Catfish Tank Mates

Some of the best tank mates for Cory catfish include small tetras, neon tetras, white cloud mountain minnows, and other peaceful bottom-feeding fish.

Keeping Cory cats with other peaceful species will help reduce stress and create a balanced ecosystem.

It is crucial to research any potential tank mates before adding them to the tank.

Some fish may be too aggressive or cause other problems in the aquarium, so make sure you understand their needs before adding them to the tank.

Is 3 Cory Catfish Enough?

It depends. 3 Cory Catfish might not be enough if you have a large tank. But three bronze Cory Catfish should be fine if you have a smaller tank.

While three pygmy cory cats can coexist peacefully, keeping at least five together is best to create a stable social environment.

You should also provide plenty of hiding places and a varied diet to keep your fish healthy and active.

With at least five pygmy corydoras catfish, you’ll have a thriving and vibrant aquarium.


How Many Albino Cory Catfish Should Be Kept Together?

Six is the ideal number. Too few and they will become bored, but too many and they will become territorial.

Albino cory catfish are schooling fish, so it’s best to keep them in groups of six or more. However, they are great fish for beginner aquarists because they are very hardy and easy to care for.

Corys do well in various water conditions and can tolerate various temperatures.

How Many Corydoras Should Be Kept Together? Per Gallon (FAQ)

How Many Cory Catfish in a 20-Gallon Tank?

Between eight and 10, Cory Catfish can live comfortably in a 20 gallons tank.

These fish like to swim in schools and like tanks with plenty of plants and hiding spaces, so be sure to include plenty of both when stocking your tank.

Cories are also known for their scavenging habits, so make sure to include some rocks or driftwood in your tank as well – this will give them plenty of places to explore and snack on.

How Many Cory Catfish in a 10-Gallon Tank?

You can keep five to six Cory catfish in a 10-gallon tank. They are bottom-dwelling fish and like to hide among the plants, so make sure you have some decor in your tank for them to use as shelter.

Panda Cory catfish are also very active and playful, making them a great addition to any aquarium.

How Many Cory Catfish in a 50-Gallon Tank?

In a 50-gallon tank, you could fit around 10 Cory catfish. However, they like to swim in schools, and they’re pretty small fish, so you don’t want too many, or they’ll get lost in the tank.

Plus, if there are too many fish in the tank, the water will not be able to renew itself as often, and your fish will start to get sick. So 10 is a good number for a 50-gallon tank.

How Many Cory Catfish in a 40-Gallon Tank?

You can comfortably keep up to eight Cory catfish in a 40-gallon tank. They are active and playful fish, so providing them with plenty of hiding spots and places to explore is crucial.

In addition, this cory species is a shoaling fish, so you must keep at least six together to create a stable social environment. Also, remember to provide your fish with a varied cory catfish diet and plenty of fresh water.

By following these guidelines, you can ensure that your fish will remain healthy and happy.

How Many Cory Catfish in a 30-Gallon Tank?

You can have about 6-8 Cory Catfish in a 30-gallon tank. Different cory catfish types are bottom-feeders and do well in tanks with plenty of plants and hiding spots.

julii cory catfish prefer soft, acidic water conditions and a temperature of about 72 degrees Fahrenheit. They also need plenty of oxygen in the cory catfish tank, so ensure you get a good filtration system.

How Many Cory Catfish in a 5-Gallon Tank?

You can have a maximum of 2 cory catfish 2.5 inches in a 5-gallon tank.

Cory catfish live in groups, so it’s best to keep at least three cory catfish or more together. They are bottom feeders and will help keep the tank clean.

Make sure to keep the water clean and provide plenty of hiding places. Also, remember to feed them a varied diet and keep the temperature between 72-78 degrees Fahrenheit.

How Many Cory Catfish in a 29-Gallon Tank?

This is a difficult question to answer because so many factors need to be considered, such as the cory catfish size and age of the Cory Catfish, the type of food being fed, and the water temperature.

In general, however, it is safe to say that you can have up to 15 Cory Catfish in a 29-gallon tank.


Now that you know more about how many Cory catfish should be kept together, you can decide based on your unique circumstances. If you have any questions or concerns, please consult with a professional. With the proper Cory catfish care, your peppered Cory catfish will thrive and bring you years of enjoyment.

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About Me

I am the founder of, a devoted wife and mother, and an avid fish enthusiast. My aim is to assist fellow fish lovers worldwide in understanding how to properly care for and breed their pet fish.

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