Aquarium fish can differ from their counterparts in oceans and streams and owners should be aware. Learn about some common and not so common aquarium fish, such as the Egyptian Mouthbrooder, Penguin Fish, and Tiger Barb.
Bleeding Heart Tetra
The bleeding heart tetra is a deep-bodied tetra that grows to two inches and must be kept in groups. This fish is higher-maintenance than many others, but it's beauty may be worth the extra care.