The Acanthurus nigricans, or Whitecheek Surgeonfish, is a visually stunning tang species prized for its bold black body contrasted with bright white cheek patches and vibrant yellow highlights. This small specimen is perfect for marine enthusiasts seeking a colourful and active addition to their reef or fish-only aquarium.
Care Level: Moderate to advanced. This species requires stable water parameters and a mature tank environment.
Temperament and Compatibility: Generally peaceful but territorial towards conspecifics and similar tang species. Best kept singly or in a large tank with plenty of hiding spaces to reduce aggression. Compatible with a wide range of reef-safe fish.
Diet: Primarily herbivorous. Provide a varied diet rich in marine algae, seaweed sheets (nori), and high-quality herbivore pellets or flakes. Occasional meaty foods can be offered but should not dominate the diet.
Minimum Tank Size: At least 180 litres (50 gallons) to allow ample swimming room and to reduce territorial behaviour.
Lighting and Water Flow: Standard reef lighting is suitable. Moderate to strong water flow mimics natural habitats and promotes health.
Placement: Mid to upper levels of the aquarium. Provide live rock for grazing and shelter.
Origin: Indo-Pacific region.
Maximum Size: Up to 25 cm (10 inches) in length.
Overall, the Whitecheek Surgeonfish is a vibrant and engaging species that adds dynamic movement and colour to a suitably sized marine aquarium. Careful attention to diet and tank conditions will ensure a healthy, long-lived specimen.
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