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Indian Naso Tang Care Guide

Naso elegans is an Indian Ocean unicornfish with a grey body, yellow dorsal fin and orange caudal plates, feeding on brown algae and reaching about 45 cm.

Overview

Naso elegans, the elegant or Indian orangespine unicornfish of the family Acanthuridae, has a grey body, a dark snout set off by a yellow bar at the eyes, a yellow dorsal fin with a blue edge and vivid orange caudal peduncle plates. It was long regarded as an Indian Ocean colour morph of Naso lituratus until consistent meristic differences were recognised. FishBase records a maximum standard length of 45 cm.

Taxonomy

  • Family: Acanthuridae
  • Genus: Naso
  • Scientific name: Naso elegans
  • Described by: Rüppell, 1829

Habitat

The species is marine and reef-associated in the Indian Ocean, from the Red Sea south to Durban, South Africa, and east through the western Indian Ocean islands to southwestern Indonesia, at least to Bali. It inhabits coastal and sheltered reef flats in small groups and schools, with FishBase recording depths of 5-30 m.

Tank requirements

  • Minimum tank volume: 900 L (238 gal)
  • Temperature: 24-26 °C (75-79 °F)
  • pH: 8.1-8.4
  • Specific gravity: 1.024-1.026
  • Carbonate hardness: 8-12 dKH
  • Strong water flow
  • Lifespan: 10-25 years

Diet

Naso elegans is herbivorous, feeding on benthic brown algae, particularly the genera Sargassum and Dictyota. In aquaria it should receive frequent offerings of marine algae and dried seaweed.

Compatibility

A semi-aggressive, diurnal mid-water swimmer and strong swimmer, it forms small schools on reef flats and larger schools in more oceanic waters. Wrasses, clownfish, angelfish and sturdy triggerfish make suitable tankmates, while other tangs of similar shape should be avoided in smaller systems.

Reef compatibility

The species does not eat coral and is considered reef-safe, grazing brown macroalgae. Maintain carbonate hardness of 8-12 dKH and specific gravity of 1.024-1.026.

Conservation status

IUCN Red List: Least Concern, assessed in 2010 via FishBase.

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