Chaetodon decussatus, commonly known as the Large Butterflyfish, is a visually captivating species prized for its distinctive crosshatched pattern. This species is best suited to experienced marine aquarium keepers due to its specific care requirements and dietary needs.
Care Level: Moderate to Advanced. This butterflyfish demands stable water conditions and a well-established aquarium.
Temperament: Generally peaceful but can be territorial towards conspecifics or similar species. Best kept singly or as a mated pair in larger tanks.
Diet: Omnivorous with a preference for meaty foods such as mysis shrimp, brine shrimp, and specialised prepared diets formulated for butterflyfish. Supplement with algae-based foods to mimic natural feeding habits.
Minimum Tank Size: 150 litres (approximately 40 US gallons) or larger to provide ample swimming space and reduce territorial behaviour.
Lighting Requirements: Moderate lighting to replicate natural reef environments.
Water Flow: Moderate water movement is preferred, simulating natural reef currents without causing stress.
Placement: Provide plenty of live rock for grazing and hiding spots. Avoid aggressive tank mates and ensure compatibility with other peaceful species.
Origin: Native to the Indo-Pacific region, particularly around coral reefs.
Maximum Size: Up to 20 cm (approximately 8 inches) in length.
With proper care, the Chaetodon decussatus can be a stunning and rewarding addition to a mature marine aquarium.
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