Pomacanthus semicirculatus, commonly known as the Semicircle Angelfish, is a visually captivating marine fish prized for its bold patterns and vibrant colours. This extra extra large (XXL) specimen is suited for experienced hobbyists with ample aquarium space.
Care Level: Moderate to advanced care is recommended due to its size and specific dietary needs.
Temperament: Generally semi-aggressive; it may show territorial behaviour, especially towards other angelfish or similar species.
Diet: Omnivorous – requires a varied diet including marine algae, spirulina, mysis shrimp, and high-quality angelfish pellets to maintain optimal health.
Minimum Tank Size: At least 500 litres (approximately 130 gallons) to accommodate its large adult size and swimming needs.
Reef Safety: With caution – may nip at corals and sessile invertebrates, so careful monitoring is advised in reef systems.
Lighting Requirements: Standard marine aquarium lighting is sufficient; no special lighting needs.
Water Flow: Moderate water flow mimicking natural reef environments is ideal.
Placement: Provide plenty of live rock for grazing and hiding spots to reduce stress and territorial disputes.
Origin: Indo-Pacific region.
Maximum Size: Up to 40 cm (approximately 16 inches) in length.
Due to its size and temperament, Pomacanthus semicirculatus XXL is best housed in a species-specific or mixed community tank with robust tank mates. Regular water quality maintenance and a balanced diet are essential for longevity and vibrant coloration.



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