Fairly large fish, light blue/grey color with narrow horizontal black bands, black fins with blue edges, and yellow tail spine.
Red Sea to Persian Gulf and the Western Indian Ocean. Commonly on outer reefs or reefplateaus, usually in currents, in a depth range of 0-20 meters.
Reproduction due to spawning and fertilization shortly after.
Up to 40cm.
It feeds on a few different kinds of algae including Sargassum.
They are territorial.