 "Kyphosus sectatrix" forms schools, often mixed with other related species, on shallow reefs, frequently these are observed in the surge zone but it also occurs above algal reefs and in seagrass beds, over sandy and rocky substrates, and reef flats.Juveniles commonly shelter among floating rafts of "[[Sargassum]]" and this allows the to disperse over vast distances.This is an omnicorous species which feeds mostly on [[benthic]] [[algae]] and also on as well as on small crabs and molluscs.