FishExpert care180g minimum

Achilles tang reef compatibility check

Acanthurus achilles

Demanding large-system tang that should be treated as an expert livestock plan.

Minimum tank

180 gallons

Care level

Expert

Reef safety

Safe

Bioload score

3.8

Stocking stage

Middle

Flow need

Varied

Light need

None

Compatibility warnings

Avoid for beginners.
Needs very high oxygenation and swimming room.
Check adult size against the final tank, not the fish or coral at purchase size.
Add livestock slowly so the bioload and nutrient export can keep up.
Use the planner when this animal changes the tank-size, flow, lighting, or stocking plan.

Tank minimum

180 gallons

ReefCrafter uses 180 gallons as the planning floor for adult size, swimming room, nutrient load, and aggression margin.

Maturity gate

No special delay

This species can be planned early when the tank is cycled and the rest of the stocking list is compatible.