Common in lagoon and seaward reefs, primarily around islands. Under or near ledges by day. Benthopelagic. Juvenile pelagic. Nocturnal, feeding mainly on octopi, pelagic shrimp, stomatopods, crabs, small fish, and polychaetes. Solitary. During the day usually occurs singly or in small groups but at dusk it may gather in large numbers. Known to produce sound.