Acanthurus thompsoni, or Thompson’s Surgeonfish, is a captivating medium-sized tang that adds vibrant colour and dynamic movement to a mature marine aquarium. This species is best suited for aquarists with some experience due to its specific care requirements and active nature.
Care Level: Moderate to advanced. Thompson’s Surgeonfish requires stable water parameters and a well-established tank.
Temperament: Generally peaceful but territorial towards conspecifics and similar tang species. Best kept singly or in a large tank with ample space.
Diet: Primarily herbivorous. Provide a varied diet rich in marine algae, seaweed sheets, and high-quality herbivore pellets or flakes. Supplement with occasional meaty foods to ensure balanced nutrition.
Minimum Tank Size: A minimum of 180 litres (approximately 50 gallons) is recommended to accommodate its active swimming behaviour and territorial needs.
Lighting and Water Flow: Moderate lighting and moderate to strong water flow mimic its natural reef environment, promoting health and activity.
Placement: Provide plenty of live rock for grazing and hiding spots. Ensure open swimming areas to accommodate its active nature.
Origin: Not Provided.
Maximum Size: Typically reaches up to 25 cm in length.
Reef Compatibility: With Caution. May nip at coral polyps and sessile invertebrates; not recommended for sensitive reef tanks.
Overall, Acanthurus thompsoni is a stunning addition to a suitably sized marine aquarium, offering both beauty and activity. Proper care and tank conditions will ensure a healthy and vibrant specimen.



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