Chelmon muelleri, commonly known as the large butterflyfish, is a captivating addition to mature marine aquariums. This species is admired for its elongated body, delicate fins, and unique patterning, making it a standout specimen for experienced hobbyists.
Care Level: Moderate to advanced. Chelmon muelleri requires stable water parameters and a well-established aquarium environment.
Temperament and Compatibility: Generally peaceful but can be territorial towards conspecifics or similar-shaped butterflyfish. Best kept singly or as a mated pair in larger tanks. Compatible with other peaceful marine fish but avoid aggressive tankmates.
Diet: Omnivorous with a preference for meaty foods such as mysis shrimp, brine shrimp, and finely chopped seafood. Supplement diet with algae-based foods to mimic natural feeding habits. Feeding multiple times daily is recommended to maintain health.
Minimum Tank Size: At least 150 litres (40 US gallons) to provide ample swimming space and territories.
Lighting and Water Flow: Moderate lighting to support live rock growth and moderate water flow to simulate natural reef conditions.
Placement: Provide plenty of live rock for grazing and hiding spots. Ensure a peaceful environment with minimal stress from aggressive species.
Origin: Not Provided.
Maximum Size: Typically grows up to 15 cm (6 inches).
With proper care, Chelmon muelleri can thrive and become a stunning focal point in your marine aquarium.



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