Can Cory Catfish Live With Bettas: Compatibility Factors and Tips

Photo from: bettasandfriends

Do you have a betta fish and a Cory catfish? If so, you may be wondering if they can coexist peacefully. The short answer is that it depends on the individual betta fish and Cory catfish and their unique personalities. However, in general, the answer is yes. So it’s generally safe to put them together if they’re both comfortable being around other live fish.

If you decide to keep them together, make sure both fish have enough space and plenty of vegetation and hiding places for both species to feel safe. In addition, remember to remove any dead algae or plants when changing the water because these wastes and floating vegetation can be fatal for both fish. This is also important so that they do not eat your betta when he’s out with you at night.

Why Are Cory Catfish Good Tankmates for Bettas?

There are many reasons why Corydoras catfish are good tank mates for bettas. First of all, corys are big fish and will not quickly succumb to the smaller betta’s aquatic attacks. Secondly, they have a ton of energy and can be very active in their tanks – this is perfect for a tank with a solitary or semi-socialized betta who needs some stimulation. Finally, both species love to eat algae and other plant life, so a healthy and well-maintained cory tank will have plenty of this nutritious food for the bettas. In addition, Corydoras catfish can eat almost anything, including macroalgae and even your betta’s favorite seafood foods.

Cory Catfish: Basic Information and Betta Compatibility

General Overview

The Corydoras catfish is a popular freshwater fish throughout the world. Native to South America, this hardy fish can tolerate low water conditions and temperatures. It grows up to 4 inches in length, has a broad head with moderate eyesight, and numerous small scales on its body. The corys are active predators that feed primarily on smaller fish but will also eat crustaceans, insects, and worms. In addition, they swim in schools and eat decaying matter. Because of the corys friendly size and appetite, they are suited for a betta tank when the fish have been acclimated to cooler water temperatures such as those found within aquariums.

Water Conditions

When kept with a betta, corys will do well in standard aquarium water conditions of 74 to 80 degrees Fahrenheit (23 to 26 degrees Celsius) and a pH range of 7.0 to 8.0. You should provide them with plenty of hiding places (such as plants or rocks) and some surface area to swim around – if the tank is densely planted, add more open space to explore.

Corydoras are omnivorous fish, but their diet should consist of mostly plant material and small fish – they will not eat betta flakes or other animal food products. The water conditions of a well-maintained cory tank are essential for the health and wellbeing of the catfish. Corys thrive in acidic waters but can tolerate slightly high pH levels as long as they have adequate chlorine supplementation.

Ideal Habitat

Corydoras are active predators that require plenty of space to play and swim around. You should provide them with a sizeable tank – at least 125 gallons – and many hiding spots (such as plants or rocks). They appreciate layer gravel ornaments that provide plenty of hiding places and rock surfaces for swimming. In addition, they need enough open space to extend their fins and explore thoroughly.


Corys are generally non-aggressive fish and can be kept in community aquariums with other small, peaceful pets such as betta fish. However, they can inflict significant damage to fins and scales if they feel threatened or harassed – so it’s essential to provide them with plenty of territory in their tank. However, when kept with other smaller species, usually only their females should be placed in a tank together – males may get territorial and aggressive towards them.

How to Help Cory Catfish and Betta Get Along?

Providing your catfish with plenty of hiding spots, live and artificial plants, and a varied diet is the best way to keep them healthy and happy. Additionally, please make sure the water conditions in their tank are ideal by following the manufacturer’s instructions. Finally, be patient – corys may take time to get used to new surroundings and partners.

How to Choose a Cory Catfish for Your Betta?

The best way to choose a cory is first to decide what type of fish you would like to own and then research the different types available. Once you have narrowed down your choice, consider these factors when making your purchase: size, coloration, personality traits, activity level, and water requirements. In addition, you would also need to consider the type of tank mates that you will have after buying your cory.

How to Introduce Cory Catfish to an Established Betta Tank?

If you already have a tank filled with fish and want to add Corydoras, the best way to do it is slowly. Begin by adding small amounts of the catfish over time in areas where your betta isn’t as fearful. Once your betta accepts them, introduce them to the whole tank at once. In addition, make sure the tank has an adequate cover and hiding spots and a variety of driftwood pieces.