Acanthochromis polyacanthus is a popular damselfish species prized for its vibrant colours and manageable size. This species is well-suited to a range of marine aquarium setups, particularly reef and community tanks where its generally peaceful nature can be appreciated.
Care Level: Easy to moderate care requirements make this fish a good choice for hobbyists with some marine experience.
Temperament: Typically peaceful but may exhibit territorial behaviour if kept in too small a tank or with incompatible tankmates. Best housed with other non-aggressive species.
Diet: Omnivorous. Accepts a variety of foods including high-quality flake, pellet, frozen, and live foods. A varied diet promotes optimal health and colouration.
Minimum Tank Size: A minimum of 75 litres (20 gallons) is recommended to provide adequate swimming space and reduce territorial disputes.
Lighting Requirements: Standard aquarium lighting is sufficient. No special lighting needs.
Water Flow: Moderate water flow is ideal to simulate natural reef conditions without stressing the fish.
Placement: Mid to lower levels of the aquarium. Provide plenty of live rock or hiding places to mimic natural habitat and reduce stress.
Origin: Native to the Indo-Pacific region.
Maximum Size: Typically grows up to 12 cm (4.7 inches) in length.
Reef Safe: Yes, generally compatible with reef aquariums, but caution advised if housed with very small or delicate invertebrates.
When introducing Acanthochromis polyacanthus to your aquarium, ensure stable water parameters and a well-established tank to promote health and longevity. Regular monitoring and a balanced diet will help maintain vibrant colours and active behaviour.


