Chaetodon guentheri, commonly known as Günther’s Butterflyfish, is a visually captivating species prized by marine aquarium enthusiasts. This small butterflyfish displays distinctive colouration and patterns that make it a standout addition to a mature reef or fish-only marine tank.
Care Level: Moderate to advanced. Günther’s Butterflyfish requires stable water parameters and a well-established aquarium environment.
Temperament and Compatibility: Generally peaceful but can be territorial towards conspecifics or similar species. Best kept singly or as a mated pair in a tank with other peaceful fish. Avoid housing with aggressive or fin-nipping species.
Diet: Omnivorous. Provide a varied diet including high-quality frozen mysis, brine shrimp, marine algae, and specialised prepared foods formulated for butterflyfish. Supplement with live rock to encourage natural grazing behaviour.
Minimum Tank Size: A minimum of 120 litres (approximately 30 gallons) is recommended to provide ample swimming space and territory.
Lighting and Water Flow: Standard reef lighting is suitable. Moderate water flow mimicking natural reef conditions is ideal.
Placement: Provide plenty of live rock with crevices and hiding spots to reduce stress and encourage natural behaviour.
Origin: Not Provided.
Maximum Size: Typically grows up to 12 cm (approx. 4.7 inches).
Reef Safety: With Caution. May nip at coral polyps or sessile invertebrates; not recommended for delicate reef tanks.



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