PURPLE TANG (Zebrasoma xanthurum) ©petfishonline
The purple tang, yellowtail surgeonfish, or yellowtail tang (Zebrasoma xanthurum) is a marine reef tang in the fish family Acanthuridae. The fish grows to a maximum length of 25 centimeters (9.8 inches). Zebrasoma xanthurum inhabits the Red Sea, the west coast of India, the east coast of Africa, and the Persian Gulf, where it may live at water depths of 1 to 20 metres (3 to 65 feet) or more. It is a herbivorous fish eating primarily filamentous algae. Zebrasoma xanthurum is omnivorous in its juvenile stage, but becomes increasingly herbivorous as it matures.
Fact Source: http://en.wikipedia.org/wiki/Zebrasoma_xanthurum
Other photos you may like:
Desjardins Sailfin Tang