Inhabits channels, moats, lagoon and seaward reefs with strong surge. Typically occurring in small groups. Juveniles in shallow protected bays and harbours (Ref. 48637). Mainly diurnal. Feeds on coarse leafy brown algae like Sargassum. Large adults sometimes solitary at edge of reef (Ref. 3921).
- Tinker, S.W. 1978 Fishes of Hawaii, a handbook of the marine fishes of Hawaii and the Central Pacific Ocean. Hawaiian Service Inc., Honolulu. 568 p. (Ref. 583) http://www.fishbase.org/references/FBRefSummary.php?id=583&speccode=1265