Gem Tang – Zebrasoma gemmatum

Zebrasoma gemmatum—famously the Gem Tang—is a rare, reef-safe showpiece prized for its jet-black body dusted with starry white “gems” and a vibrant yellow caudal fin. Active yet poised, this algae grazer thrives in mature 120–150+ gallon aquariums with strong oxygenation, open swimming lanes, and abundant established rock for browsing. Like other Zebrasoma, it can be territorial toward similar tangs; keep singly or introduce last to minimize conflict. Feed an algae-forward diet—nori/seaweed on clips, spirulina pellets, and quality herbivore blends—with occasional mysis to maintain peak condition and color. As a dedicated film-algae and diatom specialist, the Gem Tang leaves corals alone while keeping surfaces polished, making it an exceptional choice for mixed reefs and high-end displays. Our Zebrasoma gemmatum for sale are expertly conditioned at Discover Aquatics in Taylor Mill, KY and ship via UPS Next Day Air® for maximum health. Buy saltwater fish online with confidence from your local aquarium store serving Cincinnati, Northern Kentucky, and Indiana—then complete your look with our WYSIWYG coral selection.