Chaetodon pelewensis, commonly known as the Medium Butterflyfish, is a visually stunning addition to any mature marine aquarium. This species is admired for its intricate colouration and graceful swimming behaviour.
Care Level: Moderate to advanced care is recommended due to their specialised dietary needs and sensitivity to water quality.
Temperament: Generally peaceful but can be territorial towards conspecifics or similar-shaped fish. Best kept singly or as a mated pair in a suitably sized tank.
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: A minimum of 150 litres (40 US gallons) is advised to provide ample swimming space and territory.
Reef Compatibility: With caution. May nip at coral polyps and sessile invertebrates, so only suitable for reef tanks with hardy corals or fish-only setups.
Lighting and Water Flow: Standard reef lighting and moderate water flow are suitable, replicating their natural reef environment.
Placement: Provide plenty of live rock for grazing and hiding spots. Avoid aggressive tank mates and ensure stable water parameters.
Origin: Not Provided.
Maximum Size: Approximately 15 cm (6 inches).
Regular water changes and maintaining pristine water quality are essential for the health of Chaetodon pelewensis. This species thrives in a well-established aquarium with stable parameters and a varied diet.



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