The Acanthurus chirurgus, or Doctorfish Tang, is a popular choice among marine aquarium enthusiasts seeking a robust and visually impressive tang. This species is characterised by its oval, laterally compressed body and distinctive sharp spines on the caudal peduncle, which it uses defensively.
Care Level: Moderate to advanced. This species requires stable water conditions and a well-established aquarium.
Temperament: Semi-aggressive. While generally peaceful with other fish, it can show territorial behaviour towards conspecifics or similar tang species.
Diet: Primarily herbivorous. Provide a varied diet rich in marine algae and seaweed, supplemented with high-quality herbivore pellets and occasional meaty foods.
Minimum Tank Size: At least 180 litres (approximately 50 gallons) to provide ample swimming space and reduce territorial aggression.
Lighting Requirements: Standard marine aquarium lighting is sufficient. Ensure adequate lighting to support algae growth for natural grazing.
Water Flow: Moderate to strong water movement mimics natural reef environments and promotes fish health.
Placement: Provide plenty of live rock for grazing and hiding spots. This tang appreciates open swimming areas combined with reef structures.
Origin: Western Atlantic, including the Caribbean Sea and the coast of Brazil.
Maximum Size: Up to 38 cm (15 inches) in length.
Reef Safe: With Caution. Generally compatible with reef tanks but may nip at some sessile invertebrates or coral polyps.
Overall, the Acanthurus chirurgus is a rewarding species for marine aquarists who can provide the space and care it requires. Regular monitoring and a balanced diet will help maintain its vibrant colours and health.
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