The Rock Beauty Angelfish (Holacanthus tricolor) is a visually stunning species prized for its bold yellow body contrasted with deep black markings. This extra large variant is best suited for advanced marine aquarists due to its specific care needs and territorial temperament.
Care Level: Moderate to advanced. This species requires stable water parameters and a well-established aquarium.
Temperament: Semi-aggressive. It can be territorial, especially towards other angelfish or similar-shaped species. Best kept singly or with robust tank mates.
Diet: Omnivorous. Provide a varied diet including marine algae, spirulina, mysis shrimp, and specialised angelfish preparations to ensure optimal health.
Minimum Tank Size: 250 litres (approximately 65 gallons) or larger. The Rock Beauty needs ample swimming space and hiding spots.
Reef Safety: With Caution. May nip at corals and sessile invertebrates; not recommended for delicate reef tanks.
Lighting Requirements: Standard marine aquarium lighting is sufficient.
Water Flow: Moderate water flow mimicking natural reef environments is ideal.
Placement: Provide plenty of live rock for grazing and shelter. Position in a well-established tank with stable water quality.
Origin: Western Atlantic, including the Caribbean Sea.
Maximum Size: Up to 30 cm (12 inches) in length.
Due to their territorial nature and specific dietary needs, the Rock Beauty Angelfish is best suited for experienced hobbyists who can provide a spacious, mature aquarium environment. Regular monitoring and a varied diet will help maintain vibrant colours and robust health.
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