Chaetodon semeion

Chaetodon semeion, commonly known as the Dotted butterflyfish, is a large butterflyfish. Their body is bright yellow with greyish spots on it which are arranged in horizontal lines. As juveniles they've a vertical black eye bar and a black spot on the caudal fin base. As they mature, the spot disappears and just above and below the caudal fin base get balck instead. The black eyebar changes to a black patch below the eye and the forehead becomes blue. As does the rim of the anal and dorsal fin. The dorsal fin also develops a long filament.

These fish are quite peaceful to most other fish, but might haress similar looking fish. They live mostly in pairs or small groups in coral rich areas. In an aquarium they can best be kept alone unless a proven pair can be found. They're real omnivores feeding on all sorts of worms and algae, but they're also facultative corallivores, meaning they do eat but don't need corals. This makes them not really suitable for most reef tanks though, but a perfect pick for a fish-only tank! Feed them a varied diet of live and frozen meaty foods and make sure you supplement this with a good quality algae based flake and/or pellet food to make them really happy!