Oneknife Unicornfish

Naso thynnoides

Oneknife Unicornfish

A unicornfish that hangs along the upper edges of outer reef dropoffs, picking zooplankton from the passing current, though it also browses algae. You might see one alone or find it gathered into a large school over the slope, down to about 40 metres.

Taxonomy: Animalia › Chordata › Teleostei › Acanthuriformes › Acanthuridae › Naso

Species data via the World Register of Marine Species (WoRMS), AphiaID 219670.

FAQ

How deep does the Oneknife Unicornfish live?
The Oneknife Unicornfish (Naso thynnoides) is typically found at 2–40 m.
Is the Oneknife Unicornfish dangerous to divers?
The Oneknife Unicornfish is harmless to divers.
How big does the Oneknife Unicornfish get?
The Oneknife Unicornfish grows to about 40 cm.