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Convict Tang (Acanthurus triostegus)

Find Convict Tang 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.

Convict Tang
Photo: brian.gratwicke · CC BY 2.0
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Where to buy Convict Tang

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 Convict Tang

The Convict Tang has a distinctive silvery-white body with bold vertical black stripes running from head to tail, resembling a striped pattern. The body is moderately compressed laterally with a small mouth adapted for grazing. Sharp spines are present on the caudal peduncle (tail base), characteristic of all tangs in the family Acanthuridae.

Key facts

Diet Details
Feed primarily high-quality marine herbivore preparations, dried seaweed (nori), and algae-based pellets 1-2 times daily. Supplement with fresh macroalgae and ensure abundant natural algae growth in the aquarium. Grazes continuously on algae in well-established reef systems.
Diet
herbivore
Feeding Schedule
1-2 times daily
Care Requirements
• Minimum 75-gallon tank (larger preferred for active swimming) • SG 1.020–1.025, pH 8.1–8.4, temp 72–78°F • Strong water flow & excellent filtration; herbivorous grazer • Feed varied macroalgae, spirulina, nori; supplement with quality marine flakes • Peaceful with most fish; may be aggressive toward other tangs
Aka
Cirujano Reo
Common Health Issues
Ich (marine velvet), fin rot, parasitic infections, nutritional deficiencies
Origin
Indo-Pacific region, ranging from East Africa and the Red Sea through the Indian Ocean to the central Pacific, including the Hawaiian Islands and Great Barrier Reef. Found in shallow reef environments and coastal areas.
Min tank size
75 gallons
Max Size
10
Care Level
Moderate
Family
Acanthuridae
Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.02-1.025

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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