Rainbow sharks have elongated, dark-black and greenish bodies. The snout is pointed. The abdominal area is flat. The fins possess red to orange-red coloration. The linear area from the gill cover, the eye, and the mouth has a characteristic brief stripe. Compared to females, male rainbow sharks have thinner bodies with black lines along the tailfins. Males also have brighter coloration. They can grow up to 6 inches (15 cm) long with an average life span ranging from 4 to 6 years.
The rainbow shark (Epalzeorhynchos frenatum) is a popular freshwater community-tank aquarium fish of the Cyprinidae family. It is also variously known as the ruby shark, red-fin shark, red-finned shark, rainbow sharkminnow, green fringelip labeo, whitefin shark and whitetail sharkminnow. Unlike true sharks, which belong to the cartilaginous fishes, the rainbow shark is a bony fish.
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Rainbow Shark".