Acanthurus blochii, or Bloch’s Surgeonfish, is a large and visually captivating tang native to the Indo-Pacific region. This species is prized for its distinctive colouration and peaceful nature, making it a desirable addition to mature marine aquariums.
Care Level: Moderate. Bloch’s Surgeonfish requires stable water conditions and a well-established tank.
Temperament: Generally peaceful but can show territorial behaviour towards conspecifics or similar tang species. Best kept singly or in a large tank with ample swimming space.
Diet: Primarily herbivorous. Offer a varied diet rich in marine algae, seaweed sheets (nori), and specialised herbivore pellets. Supplement with occasional meaty foods to ensure balanced nutrition.
Minimum Tank Size: 180 litres (approximately 50 gallons) or larger to accommodate its active swimming and territorial needs.
Reef Safety: With Caution. While generally reef safe, it may nip at certain sessile invertebrates or corals if underfed or stressed.
Lighting Requirements: Standard marine aquarium lighting suitable for reef tanks.
Water Flow: Moderate to strong flow mimicking natural reef environments.
Placement: Provide plenty of live rock for grazing and hiding spots. Ensure open swimming areas to accommodate its active nature.
Origin: Indo-Pacific region.
Maximum Size: Up to 35 cm (14 inches) in length.
Bloch’s Surgeonfish is a rewarding species for aquarists with experience in maintaining large marine tanks. Regular monitoring of water quality and diet will help maintain its health and vibrant colours.
