The Japanese Butterflyfish (Chaetodon nippon), though common in the wild, is a rare find in the marine life industry. They can be found among shallow reefs off the coast of Japan and Taiwan, where they search for invertebrates to eat. They typically have a white or silver face, a yellow body and a black or brown stripe by their caudal fin. They reach a maximum size of the 6 inches and should be housed in a fish only tank with other fish of similar size and temperament.