The Blue Boxfish (Ostracion cyanurus) male is a visually stunning species prized for its vibrant blue coloration and distinctive box-like body shape. Native to the Indo-Pacific region, this fish is a fascinating addition to mature marine aquariums.
Care Level: Moderate to advanced. The Blue Boxfish requires stable water parameters and a well-established tank.
Temperament: Generally peaceful but can be shy. It is best kept singly or as a mated pair in a community tank with non-aggressive tankmates.
Diet: Omnivorous. Feed a varied diet including high-quality marine pellets, frozen mysis shrimp, brine shrimp, and marine algae to ensure optimal health.
Minimum Tank Size: 150 litres. Provide ample swimming space and plenty of live rock for grazing and shelter.
Reef Compatibility: With Caution. While generally reef safe, the Blue Boxfish may nip at small invertebrates or sessile invertebrates, so monitor closely in reef setups.
Lighting and Water Flow: Standard marine aquarium lighting and moderate water flow are suitable. Avoid strong currents that may stress the fish.
Placement: Mid to lower levels of the aquarium, where it can explore rockwork and find shelter.
Origin: Indo-Pacific region.
Maximum Size: Up to 25 cm (10 inches).
Due to their delicate nature and specific care requirements, Blue Boxfish males are recommended for experienced marine aquarists. Regular water quality monitoring and a varied diet will help maintain their vibrant colour and health.
