Chaetodon declivis | M

Chaetodon declivis, commonly known as the Medium Butterflyfish, is a visually captivating species prized by experienced marine aquarists. This fish displays a unique pattern and vibrant colours that add interest and diversity to a mature reef or marine tank.

Care Level: Moderate to advanced care is recommended due to its specialised dietary needs and sensitivity to water quality.

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 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 advised to provide ample swimming space and territory.

Reef Safety: With caution. May nip at coral polyps and sessile invertebrates, so not recommended for delicate reef setups.

Lighting Requirements: Standard marine aquarium lighting is sufficient; no specialised lighting needed.

Water Flow: Moderate water flow replicates natural reef conditions and supports fish health.

Placement: Mid to upper levels of the aquarium where it can swim freely and access feeding areas.

Origin: Not Provided.

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

When introducing Chaetodon declivis to your aquarium, ensure stable water parameters and a well-established environment. Regular monitoring and a varied diet will help maintain optimal health. This species is best suited to aquarists with some experience in marine fish care.