Heniochus intermedius

These fish are quite peaceful to most other fish, but might haress similar looking fish. Juveniles are often found in large groups around the base of the reef (sometimes with H. diphreutes), where adults usually occur solitary or in pairs and only occasionally in groups. In an aquarium they can best be kept alone unless your tank is large enough to house a group or a proven pair can be found. They're real omnivores feeding on all sort of invertebrates, mainly zooplankton, but they're also facultative corallivores, meaning they're known to pick on corals from time to time. This makes them a risk in a reef tank, so either keep them in a fish-only tank or accept the damage they can do to corals. Feed them a varied diet of live and frozen meaty foods, but make sure to also include algae based foods like pellets and flakes, to make them really happy!