The purple 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) in the wild but rarely surpasses 20 centimetres (7.9 inches) in captivity. 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. Zebrasoma xanthurum is a popular fish in the aquarium trade. It is a herbivorous fish eating primarily filamentous algae. Zebrasoma xanthurum is omnivorous in its juvenile stage, but becomes increasingly herbivorous as it matures.
Read more about Zebrasoma Xanthurum: In Aquaria