The Ostracion cyanurus, commonly known as the Blue Boxfish, is a striking marine fish notable for its vibrant blue coloration and distinctive box-like shape. The female specimens tend to display slightly different colour patterns compared to males, making them a fascinating addition to a well-maintained marine aquarium.
Care Level: Moderate. This species requires stable water conditions and a peaceful tank environment.
Temperament: Generally peaceful but can be shy. Best kept with non-aggressive tank mates.
Diet: Omnivorous. Feed a varied diet including high-quality frozen or live meaty foods such as mysis shrimp, brine shrimp, and marine algae-based preparations.
Minimum Tank Size: 150 litres (approximately 40 gallons) to provide ample swimming space and maintain water quality.
Reef Safe: With Caution. While generally reef compatible, they may nip at small invertebrates or sessile animals.
Origin: Indo-Pacific region.
Maximum Size: Up to 20 cm (8 inches) in length.
Lighting Requirements: Standard marine aquarium lighting is sufficient.
Water Flow: Moderate water movement to mimic natural reef environments.
Placement: Mid to lower levels of the aquarium, with plenty of hiding spots and open swimming areas.
Due to their delicate nature and potential toxin release when stressed, it is essential to maintain excellent water quality and avoid sudden changes in the aquarium environment. Regular monitoring and a varied diet will help ensure the health and longevity of your Ostracion cyanurus.
