The Naso unicornis, or Unicorn Tang, is a visually captivating surgeonfish prized for its distinctive elongated body and subtle horn-like protrusion on the forehead. This small variant is perfect for marine enthusiasts seeking a striking addition to their reef or fish-only aquarium.
Care Level: Moderate to advanced. This species requires stable water parameters and ample swimming space.
Temperament: Generally peaceful but can be territorial towards conspecifics or similar tang species. Best kept singly or in a large tank with plenty of hiding spots.
Diet: Primarily herbivorous. Feed 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: At least 180 litres (approximately 50 gallons) to provide sufficient swimming room and maintain water quality.
Lighting and Water Flow: Standard reef lighting is suitable. Moderate to strong water flow mimics natural habitat conditions and supports health.
Placement: Mid to upper levels of the aquarium, with ample open swimming space and access to grazing surfaces.
Origin: Indo-Pacific region.
Maximum Size: Up to 45 cm in length in the wild; smaller sizes typical in captivity.
Reef Safety: With Caution. While generally reef safe, they may nip at certain soft corals or clam mantles.
Providing a well-established aquarium with stable parameters and a varied diet will help ensure your Unicorn Tang thrives. Regular monitoring and maintenance are essential for this species’ health and longevity.



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