Chaetodon rafflesii, commonly known as Raffles’ Butterflyfish, is a visually stunning species prized for its bold markings and vibrant colours. This medium-sized butterflyfish is a captivating addition to mature marine aquariums, particularly those with established live rock and reef environments.
Care Level: Moderate to advanced. This species demands stable water parameters and a well-established tank.
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. Requires a varied diet including high-quality frozen foods, mysis shrimp, brine shrimp, and specialised prepared diets formulated for butterflyfish. Supplement with algae and sponge-based foods to mimic natural grazing habits.
Minimum Tank Size: 150 litres (40 US gallons) recommended to provide ample swimming space and territory.
Reef Safety: With Caution. May nip at coral polyps and sessile invertebrates; suitable for fish-only or well-established reef tanks with robust corals.
Lighting Requirements: Standard marine aquarium lighting suitable for reef tanks.
Water Flow: Moderate flow to replicate natural reef conditions.
Placement: Provide plenty of live rock for grazing and hiding spots. Ensure stable water quality with regular maintenance.
Origin: Indo-Pacific region.
Maximum Size: Approximately 15 cm (6 inches).
Raffles’ Butterflyfish is a rewarding species for aquarists who can meet its specific care needs. Its striking appearance and active behaviour make it a standout specimen in any marine collection.



