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Whitespotted Surgeonfish (Acanthurus guttatus)

Find Whitespotted 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.

Whitespotted Surgeonfish
Photo: Steve Ryan · CC BY-SA 4.0
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Where to buy Whitespotted Surgeonfish

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

  • Saltwaterfish

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  • Amazon

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  • Petco

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About Whitespotted Surgeonfish

The Whitespotted Surgeonfish is a dark gray to brown-bodied surgeonfish (tang) featuring distinctive white spots or streaks scattered across its head and body. It has a laterally compressed body shape characteristic of Acanthuridae, with a prominent retractable venomous spine on each side of the caudal peduncle.

Key facts

Reef safety
Reef Safe with Caution
Appearance
The Whitespotted Surgeonfish is a dark gray to brown-bodied surgeonfish (tang) featuring distinctive white spots or streaks scattered across its head and body. It has a laterally compressed body shape characteristic of Acanthuridae, with a prominent retractable venomous spine on each side of the caudal peduncle.
Temperament
Semi Aggressive
Aka
Mustard Guttatus Tang
Min tank size
120 gallons
Difficulty Level
The Whitespotted Surgeonfish is moderately difficult, requiring a spacious tank, stable water conditions, and a consistent herbivorous diet. It is generally hardier than some tangs but can be aggressive toward other surgeonfishes and similar-shaped fish.
Care Requirements
• Minimum 120-gallon tank; larger for long-term health (can reach 9") • Stable 72–78°F, pH 8.1–8.3, SG 1.020–1.025 • Strong water flow; excellent filtration & protein skimming required • Provide herbivorous diet: quality seaweed, spirulina, and varied marine foods • Reef-safe but may nip sessile invertebrates; territorial toward surgeonfish
Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.02-1.025
Family
Acanthuridae
Feeding Schedule
2-3 times daily
Care Level
Moderate
Origin
Indo-Pacific region, ranging from the Red Sea and East Africa through the Indian Ocean to the central Pacific, including Indonesia, Philippines, and Micronesia.

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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