The species is common on coral reefs, about 2-10 m and is generally commensal with large sea anemones, either Entacmaea quadricolor (Rüppell & Leuckart, 1828) orHeteractis crispa (Ehrenberg, 1834). It is usually seen in groups that swim a short distance above their host anemones, apparently feeding on zooplankton. Reported to have been frequently encountered on local reefs in about 6-8 m depth, usually in association with Entacmaea quadricolor (Paul Brown, National Park of American Samoa, pers.comm.) (Ref. 78105). Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).