Chelmonops truncatus, commonly referred to as the Australian Butterflyfish, is a captivating species native to the coastal waters of Australia. This small butterflyfish variant is prized for its distinctive markings and elegant swimming behaviour, making it a sought-after addition to marine aquariums.
Care Level: Moderate to advanced. This species requires stable water parameters and a well-established tank.
Temperament and Compatibility: Generally peaceful but can be territorial towards conspecifics. Best kept singly or as a mated pair in a community tank with non-aggressive species.
Diet: Omnivorous. Requires a varied diet including meaty foods such as mysis shrimp, brine shrimp, and specialised marine fish pellets or flakes. Supplement with algae-based foods to mimic natural feeding habits.
Minimum Tank Size: 120 litres (approximately 30 gallons) to provide ample swimming space and territory.
Lighting and Water Flow: Moderate lighting and gentle to moderate water flow are ideal, replicating their natural reef edge habitats.
Placement: Provide plenty of live rock for grazing and hiding spots. This encourages natural behaviour and reduces stress.
Origin: Native to Australian coastal waters.
Maximum Size: Up to 15 cm (6 inches) in length.
Reef Safety: With Caution. May nip at coral polyps or sessile invertebrates; monitor closely in reef setups.
Overall, Chelmonops truncatus is a rewarding species for marine aquarists willing to meet its specific care requirements. Its unique appearance and behaviour add interest and diversity to suitable marine tanks.
