Biology

Usually found in coral-rich areas of lagoon and outer reefs; in caves and large crevices to swim through (Ref. 48635). Most abundant around islands, particularly atolls. Usually in small schools. Feeds mainly on crustaceans (portunid crabs) and fishes, sometimes on cephalopods and gastropods. In the Hong Kong live fish markets (Ref. 27253). Frequently ciguatoxic in the Marshall Is. (Ref. 37816).