Orange Shoulder Tang

Acanthurus olivaceus

Orangespot Surgeonfish · Olive Surgeonfish

Tangs & Surgeonfish

A large, hardy tang that undergoes a dramatic colour transformation from bright yellow as a juvenile to olive-grey with a distinctive orange shoulder patch as an adult. Orange shoulder tangs are peaceful for their size and adapt well to aquarium life, but they grow large and need a very spacious tank with plenty of swimming room.

Difficulty Moderate

Reef Safety Reef Safe

Temperament Peaceful

Min Tank Size 500L

Diet Herbivore

Available Stock

5 Orange Shoulder Tang listings in stock across 4 Australian reef shops, from $90 to $249 (median $150), as of 2026-10-14.

Shops with stock

Roxy Aquarium 2 from $150
Hurstville Aquarium 1 from $140
Nicks Aquarium 1 from $152.95
Ocean Reefs Marine 1 from $90

In stock only

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