Fish Guide

Unicorn Tang   (Naso unicornis)
Family: Acanthuridae (Tangs/Surgeonfishes)
Natural Range: Red Sea, Indian Ocean, Indo-Pacific Region, Western Pacific Ocean
Depth: 3 to 590 ft.   Size: 27 in.   Jumps: No   Space: 180+ gal.
Reef Safe: Yes   Care Level: Moderate   Temperament: Peaceful
Diet: Macroalgae, filamentous microalgae, copepods
Natural History: The Unicorn Tang is found on lagoons, seaward reefs, and channels where strong water currents are found. Adults are generally observed in small groups. Juveniles are generally found in more sheltered areas, such as bays and harbors. It is diurnal and observed to feed on Sargassum.
Husbandry: The Unicorn Tang requires a large swimming space, good water quality, and good turbulent water flow. It grows to a very large size but is generally peaceful. It is reported to tolerate other species well, even other Naso tangs but it may be aggressive with related species. It is reported to ignore most aquarium invertebrates. This species is reported to be hardy and long-lived.

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