Fishician®Diet
Herbivore – nori, algae-based pellets, varied marine algae; needs frequent feedings
Aquarium species profile
Achilles Tang
Acanthurus achilles · Central Pacific (Hawaii, Marshall Islands)
Minimum tank180 gal
Adult size10"
Care levelExpert
TemperamentSemi-Aggressive
Temperature75–80°F
pH range8.1–8.4
Compatible tank mates
Most reef fish; aggressive toward similar-shaped tangs
Tank mates to avoid
Other Acanthurus tangs, similar dark-bodied fish
Care notes
Stunning black body with orange teardrop. Highly prone to ich; quarantine essential. Needs pristine water, strong flow, and high oxygen levels. Feeding can be challenging initially.
Check the whole aquarium. Tank size alone does not establish compatibility. Confirm adult size, water overlap, social grouping, territory, diet, and the individual animals before stocking.