Olive green fish with an orange patch behind the gill and a pale tail.

Orange shoulder tang

Acanthurus olivaceus
Where at Shedd?
Wild Reef
Diet Algae, tiny animals and detritus
Size Length: Up to 14 inches (35 cm)
Type Fishes
Range Eastern Indian and West Central Pacific Oceans in the corals of clear lagoon and sea-facing reefs
Habitat Eastern Indian and west central Pacific Oceans on seaward reefs. Juveniles live alone or in small groups in protected bays

Did you know?

  1. Do you see that bump near the tang’s tail? It conceals a “blade” that cuts as cleanly as a scalpel.
  2. During an attack, a tang’s tail slashes at enemy fish, which could include a predator or a rival tang.
  3. Tangs are also called doctorfish or surgeonfish.

IUCN Red List Conservation Status