Gold Rim Tang

Gold Rim Tang

The Gold Rim Tang (Acanthurus nigricans) — also called the Whitecheek Tang, Powder Grey Tang, or Goldrim Surgeonfish — is one of the most striking, coveted, and instantly recognizable specialty tangs in the entire saltwater hobby. A deep chocolate-brown to black body is dramatically outlined by a signature vibrant gold rim running along the dorsal and anal fins, accented by a sharp white cheek patch beneath the eye, a narrow white band nearly encircling the mouth, electric blue-tipped pectoral fins, and a striking white tail with a distinctive yellow vertical bar — creating one of the most photogenic and immediately recognizable tang silhouettes in the entire marine trade. Not to be confused with the more commonly available Powder Brown Tang (Acanthurus japonicus), which is a related but distinct species with lighter body coloration and different facial markings, the true Gold Rim Tang delivers unmatched color contrast between its dark body and glowing gold fin margins.

What makes the Gold Rim Tang such a coveted specialty tang is the combination of extraordinary visual impact, active grazing behavior, and the distinctive appearance that separates it from every other tang species in the trade. Gold Rim Tangs are constantly active algae grazers that patrol live rock throughout the day consuming film algae, hair algae, and other nuisance growths — one of the most productive natural algae controllers for larger reef displays with sufficient tank size and swimming space to support the species long-term. The vibrant gold fin rims catch light dramatically as the fish moves through the water, and the sharp contrast against the dark body makes this species one of the most striking additions available to any established mixed reef or fish-only display.

The Gold Rim Tang is an advanced-care specialty tang that requires an established reef aquarium with excellent water quality, stable parameters, and adequate swimming space — this is not a beginner-friendly tang and is not suitable for smaller tanks or new marine systems. Gold Rim Tangs are notably more susceptible to marine ich (Cryptocaryon irritans) than most tangs, are stress-sensitive during shipping and acclimation, and require a minimum tank size of 100 to 125 gallons with strong filtration, high oxygenation, and stable water chemistry to thrive long-term. For serious specialist reefers with large established display tanks, quality herbivore feeding routines, appropriate quarantine practices, and the commitment to advanced tang care, the Gold Rim Tang delivers one of the most visually stunning specialty tangs available in the entire saltwater trade.

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Care Information

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🔍 Aquarium Insights

The Gold Rim Tang is one of the most visually distinctive advanced specialty tangs available to reef keepers:

• Deep chocolate-brown to black body with signature vibrant gold rim on dorsal and anal fins — one of the most striking tang silhouettes in the entire marine trade
• Active algae grazer that patrols live rock throughout the day consuming nuisance algae — one of the most productive natural algae controllers for larger reef displays
• An advanced-care specialty tang for established reef displays with proven husbandry — the kind of showpiece specimen serious reef keepers build a large mixed reef around, requiring quarantine protocols, established systems, and 100+ gallon tank size for long-term success

Learn More

For detailed species information, compatibility, and care tips, visit our Species Library.