Fin's Fish Guide
The Blue knifefish (Labracoglossa nitida) is a saltwater fish of the family Kyphosidae that grows up to 20 cm.
Oceania: Australia, New Zealand, Kermadec Is., Norfolk I., Lord Howe I.
Description
The blue knifefish is a perch-like fish (Microcanthidae) from coastal waters of the northwest Pacific, off East Asia. The species grows to about 20 cm and has a streamlined, blue-silver body with yellowish accents and a forked tail. As a fast schooling fish it swims in open water above rocky reefs and picks zooplankton from the current. It is a food fish. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Blue knifefish?
The Blue knifefish has a flattened, disc-shaped body and is mainly blue.
Where does the Blue knifefish live?
The Blue knifefish lives in the sea (marine waters) and is mostly found around open water. Oceania: Australia, New Zealand, Kermadec Is., Norfolk I., Lord Howe I.
How big does the Blue knifefish get?
The Blue knifefish grows to a maximum of about 20 cm. On average the species is around 15 cm.
Is the Blue knifefish dangerous to humans?
No, the Blue knifefish is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Labracoglossa
More from the family Kyphosidae
Want the complete picture on the Blue knifefish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Blue knifefish is one of 12,519 species in the app.