The Acanthurus thompsoni, commonly known as Thompson’s Surgeonfish, is a visually impressive tang species prized for its vibrant colours and active swimming behaviour. This extra large specimen is perfect for experienced hobbyists with spacious marine aquariums.
Care Level: Moderate to advanced care is recommended due to its size and activity level. This species thrives best in well-established tanks with stable water parameters.
Temperament and Compatibility: Generally peaceful but territorial towards conspecifics and similar tang species. Best kept singly or in a large tank with ample swimming space to reduce aggression. Compatible with a variety of reef-safe fish but caution advised with smaller, timid species.
Diet: Primarily herbivorous, requiring a diet rich in marine algae and seaweed. Supplement with high-quality prepared foods such as spirulina flakes, marine-based pellets, and occasional meaty treats to ensure balanced nutrition.
Minimum Tank Size: Due to its potential size and active nature, a minimum tank size of 250 litres (approximately 65 gallons) is recommended to provide sufficient swimming space and maintain water quality.
Reef Safety: Yes, generally reef safe but may nip at certain sessile invertebrates or coral polyps if underfed or stressed.
Lighting and Water Flow: Standard marine aquarium lighting is suitable. Moderate to strong water flow mimics natural reef currents and supports the fish’s health and activity.
Placement: Provide plenty of live rock for grazing and hiding spots. Open swimming areas are essential for this active species.
Origin: Not Provided.
Maximum Size: Approximately 30 cm (12 inches) in length.
