The Cyclichthys orbicularis, commonly known as the Orbicular Pufferfish, is a medium-sized species prized for its distinctive rounded body and intriguing behaviour. This species is a fascinating addition to a marine aquarium but requires careful husbandry to thrive.
Care Level: Moderate to advanced. This pufferfish needs stable water conditions and a well-maintained environment.
Temperament: Generally semi-aggressive. It can be territorial and may nip at smaller or slow-moving tankmates, so careful selection of companions is essential.
Diet: Carnivorous. Requires a varied diet including hard-shelled foods such as molluscs, crustaceans, and specialised frozen or prepared foods to help wear down their continuously growing teeth.
Minimum Tank Size: At least 150 litres (approximately 40 gallons) to provide ample swimming space and territory.
Reef Safety: With Caution. This species may nip at corals and invertebrates, so it is not recommended for delicate reef setups.
Lighting and Water Flow: Standard marine aquarium lighting and moderate water flow are suitable.
Placement: Provide plenty of hiding places with live rock and caves to reduce stress and territorial behaviour.
Origin: Not Provided.
Maximum Size: Approximately 20 cm (8 inches).
Overall, the Cyclichthys orbicularis is a captivating species for marine enthusiasts prepared to meet its specific care requirements. Regular monitoring and a varied diet will ensure a healthy and active fish in your aquarium.


