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Achilles Tang (Acanthurus achilles)

Find Achilles 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.

Achilles Tang
Photo: FakirNL · CC BY-SA 4.0
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Where to buy Achilles 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 Achilles Tang

The Achilles Tang is a striking tang with a predominantly dark brown to black body. It features a distinctive bright orange or red-orange vertical band running along the caudal peduncle and base of the tail, which is the hallmark of this species. The body is laterally compressed with a sharp, bony spine on the caudal peduncle characteristic of the Acanthurus genus.

Key facts

Diet
herbivore
Care Level
Expert
Temperament
Semi Aggressive
Care Requirements
• Minimum 100-120 gallon tank; 4-5 ft+ length preferred • Water params: 72-78°F, pH 8.1-8.3, SG 1.025-1.026 • Strong water flow (1200+ gph); excellent filtration essential • Feed varied herbivore diet: nori, spirulina, marine algae daily • Highly aggressive; keep singly or with very hardy tankmates
Reef safety
Reef Safe with Caution
Diet Details
Achilles Tangs are primarily herbivorous, grazing on marine algae in their natural habitat. In captivity, provide dried seaweed (nori), vegetable-based flake foods, and spirulina. Supplement occasionally with mysis shrimp or other meaty foods, but maintain an algae-heavy diet to promote health and coloration.
Difficulty Level
The Achilles Tang is a challenging species for experienced aquarists. It requires excellent water quality, a very large tank, and careful acclimation. It is prone to marine ich and other parasitic infections, making quarantine essential. Its semi-aggressive temperament and specific dietary and environmental needs make it unsuitable for beginners.
Appearance
The Achilles Tang is a striking tang with a predominantly dark brown to black body. It features a distinctive bright orange or red-orange vertical band running along the caudal peduncle and base of the tail, which is the hallmark of this species. The body is laterally compressed with a sharp, bony spine on the caudal peduncle characteristic of the Acanthurus genus.
Max Size
10
Feeding Schedule
2-3 times daily
Aka
Cirujano Encendido
Family
Acanthuridae

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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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