Black Ranchu

Penguin Tetra, is a popular member of the tetra freshwater fish species. Like its cousins, the Cardinal and Neon Tetra, the Penguin Tetra is kept for its attractive pattern, gentle nature, and wide availability. Schools of Penguin Tetra contrast to colorful fish in freshwater aquariums. Tetras are one of the first species new aquarium keepers explore. They are available through most fish supply outlets and are not an expensive species to acquire or replace. Once keepers have learned Penguin Tetras, the move up to larger, more colorful, and complex species is very manageable solo or mixed species tanks.