Chaetodon guentheri | M

Chaetodon guentheri, commonly known as Günther’s Butterflyfish, is a visually captivating species prized for its bold markings and graceful swimming behaviour. This medium-sized butterflyfish is best suited to experienced marine aquarists due to its specialised care requirements.

Care Level: Moderate to advanced care is recommended. Günther’s Butterflyfish can be sensitive to water quality fluctuations and dietary changes.

Temperament and Compatibility: Generally peaceful but may show territorial behaviour towards conspecifics or similar species. Compatible with other non-aggressive fish but avoid housing with overly aggressive or fin-nipping species.

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 reduce territorial stress.

Lighting and Water Flow: Standard reef aquarium lighting and moderate water flow are suitable. Avoid strong currents that may stress the fish.

Placement: Provide plenty of live rock for grazing and hiding spots. This also supports natural foraging behaviour and reduces stress.

Origin: Native to the Western Pacific Ocean.

Maximum Size: Typically grows up to 15 cm (6 inches) in length.

Reef Compatibility: With caution. While generally reef safe, Günther’s Butterflyfish may nip at coral polyps and sessile invertebrates, so monitor closely in reef setups.

Overall, Chaetodon guentheri is a stunning addition to a mature marine aquarium where its specific care needs can be met, rewarding keepers with its unique beauty and behaviour.