The Yellow Tang (Zebrasoma Flavescens) is a saltwater fish species of the family Acanthuridae. It is one of the most popular aquarium fish, all of which are taken from the wild, as it is not possible to breed them commercially. Adult fish can grow to 7.9″ inches in length, and 0.39–0.79″ inches in thickness. Adult males tend to be larger than females.
Yellow Tangfish are bright yellow in color. At night, the yellow coloring fades slightly, and a prominent brownish patch develops in the middle with a horizontal white band. They rapidly resume their bright yellow color during daylight.