Zebrasoma flavescens is endemic to the central Pacific - Hawaii, Wake, Marshall Islands, and Marcus Island. For decades the hobby was supplied entirely by Hawaiian wild collection until political pressure restricted Hawaiian aquarium fishery. Biota Group's captive-breeding breakthrough (first commercial captive-bred Yellow Tangs released ~2020) reshaped the supply landscape; captive-bred Yellow Tangs are now widely available and account for a growing share of the market.
Tangs need horizontal swimming space. The 100-gallon minimum is firm; smaller tanks produce stress, color loss, and Tang-specific diseases (HLLE - head and lateral line erosion). Avoid keeping multiple Zebrasoma species without 200+ gallons; intra-genus aggression is severe.
Yellow Tangs can coexist with non-Zebrasoma tangs (Naso, Bristletooth, Sailfin) in larger systems if introduced together rather than sequentially.
Strict herbivores. Daily nori (LRS or Two Little Fishies) clipped to a magnetic feeder is the gold standard. Supplement with frozen mysis, brine, and prepared herbivore foods (NLS, Reef Frenzy Herbivore). Lack of vegetable matter causes HLLE and immune compromise.
Yellow Tangs are notoriously ich-magnetic. Wild-caught specimens nearly always carry parasitic load. Captive-bred Biota stock has lower disease incidence but still requires quarantine with copper or tank-transfer protocol. Skip QT and your reef tank will eventually pay the price.
Reef-safe with all coral. Avoid pairing with any other Zebrasoma species. Suitable tankmates include clownfish, wrasses, dottybacks, gobies, anthias, and cardinalfish. Avoid keeping with aggressive triggers, large angelfish, or other tangs of similar profile.