The Japanese Bullhead Shark (Heterodontus japonicus) is a fascinating temperate water shark native to the coastal waters of Japan and surrounding regions. Known for its distinctive head shape and peaceful temperament, this species is a captivating addition to large, well-established marine aquariums.
Care Level: This species is best suited to experienced aquarists due to its specific environmental needs and dietary requirements. It thrives in cooler water temperatures typical of temperate marine environments.
Tank Requirements: A minimum tank size of 300 litres is recommended to provide ample swimming space and to accommodate its natural behaviour. The aquarium should maintain stable temperatures between 15-20°C, with good water quality and moderate water flow.
Diet: The Japanese Bullhead Shark is carnivorous and requires a varied diet consisting of meaty foods such as shrimp, squid, and specialised shark pellets. Feeding should be done several times per week to mimic natural feeding patterns.
Temperament and Compatibility: Generally peaceful and slow-moving, this shark can be kept with other non-aggressive temperate water species. Avoid housing with small, delicate fish that may be seen as prey.
Reef Safety: With caution – this species may disturb invertebrates or small fish, so it is not recommended for reef tanks with delicate corals or invertebrates.
Additional Notes: Provide plenty of hiding places using rocks and caves to replicate its natural habitat and reduce stress. Regular monitoring of water parameters is essential to maintain optimal health.
