Chaetodon mesoleucos is a visually captivating butterflyfish species prized for its intricate colouration and graceful swimming behaviour. This small-sized fish is best suited to experienced hobbyists who can provide the stable, mature reef environment it requires.
Care Level: Moderate to advanced care is recommended due to its specialised dietary needs and sensitivity to water quality.
Temperament and Compatibility: Generally peaceful but can be territorial towards conspecifics or similar species. Suitable for community reef tanks with non-aggressive tank mates. Avoid housing with overly aggressive fish.
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 (approximately 40 US gallons) is recommended to provide ample swimming space and stable water parameters.
Lighting and Water Flow: Standard reef aquarium lighting is sufficient. Moderate water flow replicates natural reef conditions and supports fish health.
Placement: Mid to upper levels of the aquarium, where it can swim freely and access feeding areas.
Origin: Not Provided.
Maximum Size: Typically grows up to 12 cm (4.7 inches).
Reef Safety: With Caution – may nip at coral polyps or sessile invertebrates, so monitor closely in reef setups.
Providing a stable environment with regular water changes, high water quality, and a varied diet will help ensure the health and longevity of your Chaetodon mesoleucos.

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