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Ocean Surgeonfish (Acanthurus bahianus)

Find Ocean Surgeonfish across reef-livestock retailers and from fellow hobbyists on ReefDock. Compare sources, check live pricing where available, and review source-tank parameters on Reef-Trak-verified fish listings before you buy.

Ocean Surgeonfish
Photo: François-Louis Laporte, comte de Castelnau · Public domain
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Where to buy Ocean Surgeonfish

ReefDock searches the following reef retailers for this fish. Click through to see the live price.

  • Saltwaterfish

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    Search Saltwaterfish
  • Amazon

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    Search Amazon
  • Petco

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    Search Petco

About Ocean Surgeonfish

The Ocean Surgeonfish is a small tang with a laterally compressed body and predominantly blue-grey coloration. It features a yellow stripe running along the dorsal fin edge and distinctive yellow markings on the tail peduncle. Like all surgeonfishes, it has a sharp, venomous spine on each side of the tail base used defensively.

Key facts

Common Health Issues
Ich (marine white spot disease), fin rot, parasitic infections
Appearance
The Ocean Surgeonfish is a small tang with a laterally compressed body and predominantly blue-grey coloration. It features a yellow stripe running along the dorsal fin edge and distinctive yellow markings on the tail peduncle. Like all surgeonfishes, it has a sharp, venomous spine on each side of the tail base used defensively.
Origin
Western Atlantic, found in the Caribbean Sea and along the coasts from Florida to Brazil, including the Bahamas and Gulf of Mexico.
Diet Details
Feed high-quality marine herbivore preparations, dried seaweed (nori), and macroalgae such as Ulva or Saccharomyces multiple times daily. Supplement with occasional spirulina-based foods to ensure adequate nutrition.
Reef safety
Reef Safe
Temperament
Semi Aggressive
Difficulty Level
Moderate difficulty. The Ocean Surgeonfish requires stable water conditions, adequate tank space, and a consistent herbivorous diet. It is hardier than many other tangs but can be territorial and may require careful tank mates.
Min tank size
75 gallons
Family
Acanthuridae
Care Level
Moderate
Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.02-1.025
Diet
herbivore

Looking for a hobbyist seller?

ReefDock's marketplace lets reef-keepers sell fish directly to other reef-keepers with Stripe-secured checkout and live-arrival photo confirmation. Browse current fish listings on ReefDock, or list your own.

Verify the source tank before you buy

ReefDock is the sister app to Reef Trak. Sellers who maintain a Reef Trak tank log can publish source-tank parameters on eligible fish listings — so you can see the conditions a fish was raised in before you buy. Log this fish on Reef Trak.

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