Achilles Tang tank mates
Acanthurus achilles
5 rated pairings from the Achilles Tang care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Achilles Tang needs at least 100 gallons on its own; every companion adds to that.
Excellent matches
1 · Same water, complementary zones, no conflict.Good matches
3 · Compatible with normal care — watch space and numbers.Ocellaris Clownfish
Amphiprion ocellaris
20 gal min · 3.5" adult · Semi-aggressive
Peaceful, reef-safe, and occupy different water zones; compatible with Achilles Tang's water requirements
Neon Goby
Elacatinus oceanops
20 gal min · 2" adult · Peaceful
Small, peaceful, and may provide cleaning services; no territorial conflicts with active tangs
Lawnmower Blenny
Salarias fasciatus
30 gal min · 4.5" adult · Peaceful
Herbivorous, peaceful, and occupies lower water zones; shares similar algae-based diet without direct competition
Use caution
1 · Works in the right setup; read the note before combining.Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.