Arguably the most popular of the small tetras, the cardinal tetra is similar in appearance to a longtime aquarium favorite, the neon tetra. Cardinal tetras are an active schooling fish, and they live peacefully in a community aquarium. Although they are difficult to breed in captivity, tetras remain a very popular aquarium fish.
|Brazil, Colombia, and Venezuela
|Peaceful, suitable for a community tank
|Top to mid-dweller
|Minimum Tank Size
|4.6 to 6.2
|Up to 4 dGH
|73 to 81 degrees F (23 to 27 degrees C)