Chaetodon rainfordi, commonly known as Rainford’s Butterflyfish, is a visually stunning species prized by marine aquarium enthusiasts. This large butterflyfish displays a distinctive pattern of yellow and black markings, making it a captivating addition to mature reef tanks.
Care Level: Moderate to advanced. This species requires stable water conditions and a well-established aquarium.
Temperament: Generally peaceful but can be territorial towards conspecifics or similar species. Best kept singly or as a mated pair in spacious tanks.
Diet: Omnivorous. Requires a varied diet including marine algae, mysis shrimp, brine shrimp, and specialised prepared foods formulated for butterflyfish.
Minimum Tank Size: At least 150 litres (40 US gallons) to provide sufficient swimming space and territory.
Reef Compatibility: With Caution. May nip at coral polyps and sessile invertebrates; suitable for reef tanks with hardy corals and ample hiding places.
Lighting and Water Flow: Standard reef lighting and moderate water flow are recommended to mimic natural habitat conditions.
Placement: Mid to upper levels of the aquarium, where it can swim freely and access feeding areas.
Origin: Native to the western Pacific Ocean, particularly around Australia and New Guinea.
Maximum Size: Up to 18 cm (7 inches) in length.
Providing a stable environment with regular water changes and a balanced diet will help maintain the health and vibrancy of this beautiful butterflyfish.

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