One of the most popular of all tropical fish, the Cardinal Tetra grows to about 1.5 inches and must be kept in shoals. Tank mates must be peaceful and not too large. With its colorless fins and deep red body split by a bold blue stripe, the Cardinal Tetra makes quite a sight in an aquarium. Dark gravel and background help to emphasize the colors of this fish, and it shows its colors best in relatively soft, acidic water.
Living Environment : The Cardinal Tetra does well on flake and freeze-dried foods.