Priacanthus sagittarius, also called Bigeye like all members of this family, are widespread in the Indo-West Pacific. From Red Sea to Japan, Australia and Samoa. The first animals were already found in the Mediterranean off the coast of Israel (2009).
You can find these fish mostly in the protection of reefs in moderate depths of 60 -100 meters but also close to the surface. Of his other conspecifics (P. arenatus, P. and P. blochii hamrur) it is relatively easy to distinguish by a usually small black spot at base of ventral fins. In addition, P. sagittarius differs from P. arenatus and P. hamrur in the lower number of gills.
Like all Bigeyes also Priacanthus sagittarius is a carnivore.