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Whitebar Surgeonfish (Acanthurus leucopareius)

Find Whitebar 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.

Whitebar Surgeonfish
Photo: dloarie · CC BY 4.0
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Where to buy Whitebar 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 Whitebar Surgeonfish

The Whitebar Surgeonfish is a small, compressed tang with a primarily dark gray to brownish body. It is distinguished by prominent white vertical bars (4–5) running across the head and body, particularly noticeable behind the gill covers. Like all acanthurids, it possesses a sharp, venomous spine (scalpel-like blade) on each side of the caudal peduncle.

Key facts

Common Health Issues
Ich (Cryptocaryon irritans), marine velvet, head and lateral line erosion (HLLE), fin damage from aggression
Appearance
The Whitebar Surgeonfish is a small, compressed tang with a primarily dark gray to brownish body. It is distinguished by prominent white vertical bars (4–5) running across the head and body, particularly noticeable behind the gill covers. Like all acanthurids, it possesses a sharp, venomous spine (scalpel-like blade) on each side of the caudal peduncle.
Diet Details
In captivity, feed high-quality herbivorous preparations including nori, spirulina, and marine algae sheets daily. Supplement with occasional meaty foods and quality pellets, though the diet should remain primarily vegetable-based to maintain health and coloration.
Reef safety
Reef Safe
Care Requirements
• Minimum 75-gallon tank; larger preferred • SG 1.020–1.025, pH 8.1–8.4, temp 72–78°F • Strong water flow, excellent filtration, regular water changes • Live rock for grazing; meaty + algae-based diet • May be aggressive toward other surgeons; monitor for ich stress
Temperament
Semi Aggressive
Min tank size
75 gallons
Difficulty Level
Moderate difficulty. The Whitebar Surgeonfish requires stable water conditions, adequate space to establish territory, and a diet rich in vegetable matter. It can become aggressive toward conspecifics and similar-shaped fish, and its venomous spines demand careful handling during tank maintenance.
Diet
herbivore
Care Level
Moderate
Feeding Schedule
1-2 times daily
Origin
Indo-Pacific region, ranging from East Africa and the Red Sea to the Great Barrier Reef and the Indo-Australian Archipelago. Found in reef environments at depths from 5 to 60 meters.

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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