Fin's Fish Guide
The Apteronotid eel (Apteronotus albifrons) is a freshwater fish of the family Apteronotidae that grows up to 50 cm.
Northern and central South America; fast-flowing creeks with sandy bottoms.
Description
The black ghost knifefish is a New World knifefish (Apteronotidae) from northern and central South America. The species has a velvety-black, elongate, knife-shaped body with two white rings on the tail and a white stripe on the head, and a long, continuous anal fin with which it swims undulating forwards and backwards; a dorsal fin is absent. It inhabits fast-flowing creeks with a sandy bottom. With a weak electric field it navigates in the dark and locates prey. As a nocturnal micropredator it eats insect larvae and small invertebrates. It is a popular aquarium fish and is harmless to humans.
Frequently asked questions
How do you recognise the Apteronotid eel?
The Apteronotid eel has an elongate, eel-like body, is mainly black and shows a plain pattern. Velvety black knife-shaped body with white tail rings; weakly electric, navigates electrically in the dark.
Where does the Apteronotid eel live?
The Apteronotid eel lives in fresh water and is mostly found around mixed bottom. Northern and central South America; fast-flowing creeks with sandy bottoms.
How big does the Apteronotid eel get?
The Apteronotid eel grows to a maximum of about 50 cm.
Is the Apteronotid eel dangerous to humans?
No, the Apteronotid eel is harmless to humans. None required: this species is harmless to humans.
Is the Apteronotid eel edible?
The Apteronotid eel is not usually eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Apteronotus
More from the family Apteronotidae
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