The Acanthurus nigricans, also known as the Whitecheek Surgeonfish, is a visually stunning species prized for its deep black body contrasted with bright white cheek patches and vibrant yellow markings. This large tang is a popular choice among advanced marine aquarium enthusiasts due to its striking appearance and dynamic swimming behaviour.
Care Level: Moderate to advanced care is recommended. This species requires stable water parameters and a well-established aquarium.
Temperament and Compatibility: Generally semi-aggressive, the Whitecheek Surgeonfish can be territorial, especially towards conspecifics or similar tang species. It is best housed singly or in a large tank with plenty of swimming space to reduce aggression. Compatible with other robust fish species but caution is advised when mixing with smaller, timid fish.
Diet: Primarily herbivorous, Acanthurus nigricans thrives on a diet rich in marine algae and seaweed. Supplement with high-quality herbivore flakes, pellets, and occasional meaty foods to ensure balanced nutrition.
Minimum Tank Size: Due to its active swimming nature and potential size, a minimum tank volume of 180 litres (approximately 50 gallons) is recommended to provide ample space.
Lighting and Water Flow: Standard reef aquarium lighting is suitable. Moderate to strong water flow mimics natural reef currents, promoting health and activity.
Placement: Provide plenty of live rock for grazing and hiding spots. Open swimming areas are essential for this species to exhibit natural behaviour.
Origin: Indo-Pacific region.
Maximum Size: Up to 38 cm (15 inches) in length.
With proper care, the Acanthurus nigricans is a captivating addition to large marine aquariums, offering both beauty and dynamic movement.
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