The Large Ocellaris Butterflyfish (Chaetodon ocellatus) is a visually captivating species prized by marine aquarists for its distinctive eye-spot marking and graceful movements. Native to the western Atlantic Ocean, this butterflyfish is best suited for experienced hobbyists due to its specialised dietary needs and sensitivity to water quality.
Care Level: Moderate to advanced. This species requires stable water parameters and a well-established aquarium.
Temperament and Compatibility: Generally peaceful but can be territorial towards conspecifics or similar species. Best kept singly or as a mated pair in a community tank with non-aggressive tank mates. 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 marine algae and sponge-based foods to mimic natural feeding habits.
Minimum Tank Size: At least 150 litres (40 gallons) to provide ample swimming space and maintain water quality.
Lighting and Water Flow: Moderate lighting and gentle to moderate water flow replicate natural reef conditions and encourage natural behaviour.
Placement: Provide plenty of live rock for grazing and hiding spots. Ensure the aquarium is mature and stable before introduction.
Origin: Western Atlantic Ocean, including the Caribbean Sea.
Maximum Size: Up to 15 cm (6 inches) in length.
With proper care and attention, the Large Ocellaris Butterflyfish can be a stunning and rewarding addition to a marine aquarium.


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