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- Marine fish direct
The rainbow shark (Epalzeorhynchos frenatum) is a species of Southeast Asian freshwater fish from the Cyprinidae family. It is a popular, semi-aggressive aquarium fish. 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 Chondrichthyes ("cartilagenous fishes") lineage, the rainbow shark is an actinopterygiian ("ray-finned fish").