The Red Sea sailfin tang or Desjardin's
sailfin tang (Zebrasoma desjardinii) is a marine reef tang in the fish family
In the wild, adults usually can be found
in pairs, while juveniles are solitary. When threatened, these fishes display
their large ventral and dorsal fins. They feed primarily on filamentous algae,
various macroalgae and plankton. They are pair spawners, a typical trait of
other fish in the Zebrasoma genus. This differs from the group spawning typical
of the Acanthuridae family.