The Acanthurus nigrofuscus, commonly known as the Brown Surgeonfish, is a popular choice for marine aquarium enthusiasts seeking a peaceful and hardy tang. This species is well-regarded for its algae-grazing behaviour, which helps maintain tank cleanliness and balance.
Care Level: Moderate – suitable for aquarists with some experience in marine fish care.
Temperament: Generally peaceful but may show territorial behaviour towards conspecifics or similar tang species. Best kept singly or in a large tank with ample swimming space.
Diet: Primarily herbivorous. Provide a varied diet rich in marine algae, seaweed sheets (nori), and high-quality herbivore pellets or flakes. Supplement with occasional meaty foods to ensure balanced nutrition.
Minimum Tank Size: 120 litres (approximately 30 gallons) to allow sufficient swimming room and territory establishment.
Reef Compatibility: Yes, this species is considered reef safe and generally does not nip at corals or sessile invertebrates.
Lighting & Water Flow: Standard reef aquarium lighting and moderate water flow are suitable, mimicking their natural reef environment.
Placement: Mid to upper levels of the aquarium, where it can graze on algae and swim freely.
Origin: Indo-Pacific region.
Maximum Size: Up to 23 cm (9 inches) in length.
When introducing the Brown Surgeonfish to your aquarium, ensure stable water parameters and provide plenty of live rock for natural grazing. Regular monitoring of water quality and diet will promote health and longevity.
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