Fin's Fish Guide
The Achilles tang (Acanthurus achilles) is a saltwater fish of the family Acanthuridae that grows up to 24 cm.
Description
The Achilles tang is a surgeonfish (Acanthuridae) from the Pacific Ocean. The species has an oval, deep-black body with a conspicuous orange, teardrop-shaped patch just before the tail and orange tints in the tail and dorsal fin. It inhabits clear seaward reefs, usually in groups, often in the turbulent surge zone. It grazes on filamentous algae and small fleshy algae on the substrate. On either side of the tail base it bears a sharp, scalpel-like spine that can cause deep cuts; handle a caught specimen with care.
Frequently asked questions
How do you recognise the Achilles tang?
The Achilles tang has a flattened, disc-shaped body, is mainly black and shows a plain pattern. Deep black with an orange teardrop blotch near the tail; sharp scalpel spine at the tail base. Note: in tropical areas this species can cause ciguatera poisoning when eaten; large specimens of coral reef predators can accumulate the toxin. Eat with care or avoid in risk areas.
Where does the Achilles tang live?
The Achilles tang lives in the sea (marine waters) and is mostly found around stony or rocky ground. Pacific Ocean; clear seaward reefs and surge zone.
How big does the Achilles tang get?
The Achilles tang grows to a maximum of about 24 cm.
Is the Achilles tang dangerous to humans?
The Achilles tang can cause injury; handle it with care. The sharp, scalpel-like spine(s) at the tail base can cause deep cuts. Clean the wound thoroughly and seek medical care for a deep cut or infection.
Is the Achilles tang edible?
The Achilles tang is rarely eaten.
More photos
Want the complete picture on the Achilles tang?
Point your camera at the fish and Fin names the species in seconds. Free, and the Achilles tang is one of 12,519 species in the app.
All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Acanthurus
More from the family Acanthuridae
Want the complete picture on the Achilles tang?
Point your camera at the fish and Fin names the species in seconds. Free, and the Achilles tang is one of 12,519 species in the app.