Convict Tang – Acanthurus triostegus

Acanthurus triostegus—known as the Convict Tang—is a highly active, reef-safe herbivore that brings nonstop motion and algae control to larger marine aquariums. With clean black “convict” bars over a silver body, this peaceful grazer thrives in open swimming space with strong oxygenation and plenty of established live rock to browse. In nature it schools; in home aquariums it does best as a single specimen unless the system is very large. Expect some territorial behavior toward other tangs, especially similarly shaped species. Provide a mature 120+ gallon tank, moderate–strong flow, and a varied, algae-rich diet: sheets of nori, spirulina pellets, and occasional mysis for condition. The Convict Tang is considered a reef safe fish and rarely bothers corals while it targets film algae and diatoms. Our Acanthurus triostegus for sale are expertly conditioned at Discover Aquatics in Taylor Mill, KY and ship via UPS Next Day Air® for peak health. Buy saltwater fish online with confidence from your local aquarium store serving Cincinnati, Northern Kentucky, and Indiana—and don’t forget to explore our WYSIWYG coral to complete your reef.