Habitat: Marine, shallow waters around coral reefs. Depth range 3 - 55 m. Natural History Notes: Usually seen as solitary individuals or in pairs. Feeds principally on tentacles of polychaetes tubworms, coral polyps or zoantharians (colonial sea anemones) as well as on crustaceans and mollusk eggs. Adults may form plankton-feeding aggregations of up to 20 individuals, and occasionally clean other reef fishes which join the group, such as grunts, parrotfishes and surgeon fishes. Diurnal, active during the day and sleeping at night. Seeks shelter at the end of the day since it is highly vulnerable to night predators such as moray eels, sharks, and other large reef fishes. Characteristics: Adults : silver to white with four strong persistent black bars, greyish narrow lines following the scale rows. Black ventral fins. Scale rows on the body below the lateral line running obliquely up and back above midbody and obliquely down and back below. Juveniles : retain a white ringed ocellus on the soft dorsal.