The Port Jackson Shark (Heterodontus portusjacksoni) is a fascinating species native to the coastal waters of southern Australia. Recognisable by its blunt head, prominent ridges above the eyes, and distinctive colour pattern, this shark is a popular choice for experienced marine aquarists seeking a unique addition to their collection.
Care Level: Moderate to advanced. This species requires a well-maintained, mature marine aquarium with stable water parameters.
Temperament: Generally peaceful and slow-moving, the Port Jackson Shark is non-aggressive but may prey on small invertebrates and fish if housed with unsuitable tankmates.
Diet: Carnivorous. In captivity, it thrives on a diet of molluscs, crustaceans, and prepared meaty foods such as squid, shrimp, and specialised shark pellets. Feeding should be varied and provided multiple times per week.
Minimum Tank Size: Due to its potential size (up to 1.2 metres), a minimum tank volume of 600 litres is recommended to provide ample swimming space and reduce stress.
Lighting Requirements: Moderate lighting is sufficient, replicating natural daylight cycles.
Water Flow: Moderate water flow mimicking coastal environments is ideal.
Placement: Provide a sandy or fine gravel substrate with ample hiding places such as caves or rockwork. This species is nocturnal and appreciates shaded areas to rest during the day.
Origin: Southern Australia.
Maximum Size: Up to 1.2 metres (approx. 4 feet).
Reef Safe: No. The Port Jackson Shark may prey on invertebrates and smaller fish, making it unsuitable for reef tanks.
Overall, the Port Jackson Shark is a captivating species that requires commitment and specialised care. It is best suited to dedicated shark or species-specific marine aquariums maintained by experienced hobbyists.
