QUICK STATS Minimum Tank Size: 100 gallons Care Level: Easy Temperament: Semi-aggressive Reef Compatible: Yes Water Conditions: 72-78° F, dKH 8-12, pH 8.1-8.4, sg 1.020-1.025 Max. Size: 8" Color Form: Yellow Diet: Herbivore Compatibility: View Chart Origin: Hawaii Family: Acanthuridae Description The Yellow Tang (Zebrasoma flavescens) is a saltwater fish species of the family Acanthuridae. It is one of the most popular aquarium fish. Yellow tangs can be bred and raised commercially but are mostly harvested wild. Adult fish can grow to 20 centimeters (7.9 in) in length, and 1–2 centimeters (0.39–0.79 in) in thickness. Adult males tend to be larger than females. Yellow tang 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. It is commonly found in shallow reefs in the Pacific and Indian Oceans, west of Hawaii and east of Japan. Hawaii is the most common place for aquarium harvesting, where up to 70% of the yellow tangs for the aquarium industry are sourced from.