Most of the time the animals are coming very close to divers, seeming amlost interested in what strange animal is diving around their reefs.
They are a favourite with divers because of their curious nature, individuals regularly approach divers closely even following them.
They are either solitary, in pairs or a group, sometimes seen in special friendship with a turtle.
Juveniles are often boomerang shaped and some species have elaborate markings to mimic something else.