The sailfin tang (Zebrasoma veliferum) is a marine reef tang in the fish family Acanthuridae. They may live at water depths of 1 - 60 m (3 - 200 ft) or more. The fish grow to a maximum length of 40 cm (15.8 in). It has an extensive range throughout Oceania, the Indian Ocean, and the South Pacific. Zebrasoma veliferum is a popular fish in the aquarium trade. They are herbivorous fish specializing in filamentous algae. Though their skin is light beige with stripes, it can turn dark brown under stress.