Chaetodon bennetti, commonly known as Bennett’s Butterflyfish, is a visually captivating species prized for its bold patterns and vibrant colours. This small-sized fish is best suited to advanced marine aquarium setups due to its specialised care requirements.
Temperament and Compatibility: Bennett’s Butterflyfish is generally peaceful but can be territorial towards conspecifics or similar species. It is compatible with other non-aggressive tank mates but should be housed with caution alongside delicate invertebrates.
Diet: This species thrives on a varied diet including high-quality frozen mysis shrimp, brine shrimp, and specialised prepared foods formulated for butterflyfish. Supplementing with marine algae and sponge-based foods is recommended to mimic natural feeding habits.
Tank Requirements: A minimum tank size of 120 litres (approximately 30 gallons) is advised to provide ample swimming space and territory. The aquarium should be mature with abundant live rock to offer grazing surfaces and hiding places.
Water Parameters: Maintain stable marine conditions with temperature between 24-27°C, salinity at 1.023-1.025 SG, pH 8.1-8.4, and moderate water flow.
Reef Compatibility: With caution. While generally reef safe, Bennett’s Butterflyfish may nip at coral polyps or sessile invertebrates, so careful observation is necessary.
Overall, Chaetodon bennetti is a rewarding addition for dedicated marine aquarists seeking a distinctive butterflyfish with moderate care demands.


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