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Yellowfin Surgeonfish (Acanthurus xanthopterus)

Find Yellowfin 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.

Yellowfin Surgeonfish
Photo: Totti · CC BY-SA 4.0
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Where to buy Yellowfin 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 Yellowfin Surgeonfish

Acanthurus xanthopterus is a large, laterally compressed surgeonfish with a blue-grey to dark grey body. The dorsal and anal fins display distinctive yellow coloration, with yellow pectoral fins giving the species its common name. A pale blue stripe runs along the gill cover, and the tail fin is deeply forked.

Key facts

Care Requirements
• Minimum 150 gallon tank with ample swimming space and strong water circulation • Temperature range 72–79°F, pH 8.1–8.4, salinity 1.020–1.025 • Requires stable water conditions and regular 20–25% water changes • Establish a varied vegetable-based diet early to prevent nutritional disease • Provide hiding spaces among live rock and monitor for signs of ich or marine velvet, especially during acclimation
Reef safety
Reef Safe with Caution
Difficulty Level
Moderate - Requires some experience due to specific dietary water or tank requirements. Best suited for intermediate aquarists.
Diet
herbivore
Feeding Schedule
2-3 times daily
Water Parameters
Temperature: 72-79°F pH: 8.1-8.4 Salinity: 1.02-1.025
Min tank size
150 gallons
Appearance
Acanthurus xanthopterus is a large, laterally compressed surgeonfish with a blue-grey to dark grey body. The dorsal and anal fins display distinctive yellow coloration, with yellow pectoral fins giving the species its common name. A pale blue stripe runs along the gill cover, and the tail fin is deeply forked.
Common Health Issues
Ich (Cryptocaryon irritans), marine velvet (Oodinium), nutritional deficiency, fin damage from sharp décor
Family
Acanthuridae
Aka
Cirujano Aleta Amarilla
Care Level
Moderate

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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