The Black unicornfish (Naso hexacanthus) is a brackish-water fish of the family Acanthuridae that grows up to 75 cm.
Description
The sleek unicornfish is a surgeonfish from the Indo-Pacific. The species grows to about 75 cm and has a streamlined, blue-grey to olive body with no horn, but on either side of the tail base two sharp, fixed bony keels that can inflict deep cuts. It schools over steep reef slopes and filters zooplankton from the open water. It is a local food fish. The IUCN assesses the species as Least Concern (LC).
Frequently asked questions
How do you recognise the Black unicornfish?
The Black unicornfish has a torpedo-shaped body, is mainly blue and shows a plain pattern.
Where does the Black unicornfish live?
The Black unicornfish lives in brackish water and is mostly found around stony or rocky ground.
How big does the Black unicornfish get?
The Black unicornfish grows to a maximum of about 75 cm. On average the species is around 50 cm.
Is the Black unicornfish dangerous to humans?
The Black unicornfish can cause injury; handle it with care.
Is the Black unicornfish edible?
Yes, the Black unicornfish is commonly eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Naso
More from the family Acanthuridae
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