Black Ghost Knifefish (Apteronotus albifrons)

Scientific Name(s): Apteronotus albifrons, Gymnotus albifrons, Sternarchus albifrons

 

Common Name(s): Black Ghost, Black Ghost Knifefish, Black Knife

 

Family: Apteronotidae

 

Species Type: Knife Fishes

 

Maximum Size: 20 inches

 

Life Span: 18 years

 

Natural Habitat: South American rivers (Amazon)

 

Minimum Tank Size: 110 gallons

 

Tank Region: Bottom

 

Possible Tank Mates: Other peaceful community fish that will not fit into the mouth of the black ghost knifefish.

 

Description: The black ghost knifefish is an impressive specimen. It is nocturnal and reclusive but is a sight to behold when it comes out. It is important to note that this is a large specimen that can reach lengths of 20 inches long.

The black ghost knife fish thrives in aquariums that have plant life. This provides cover for them to hide. Some aquarium owners will purchase a clear plastic tube that is big enough for the knife fish to sleep inside. This allows viewing all day long when the animal is sleeping.

The fish is almost entirely black, but is differentiated by a distinct striped black and white tail pattern.

 

Temperature Range 73°F - 79°F

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pH Range 6 - 8

pH 5.0

pH 6.0

pH 7.0

pH 8.0

pH 9.0

 

Hardness 5° - 20°

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Breeding Information: Breeding is not possible in a home aquarium setting.

 

Sexing Information: No easy method available to determine sex.

 

Diet: Carnivorous - Does well with a diet of flake or pellet foods. Can be supplemented with a diet of small fish, bloodworms, tubifex worms, brine shrimp, krill or beef heart. The Black Ghost Knifefish is nocturnal, so food should be added after lights are off to ensure the black ghost knife fish it receiving nutrition.

 

Temperment: Generally peaceful and reclusive, but can become aggreesive. Will eat small tank mates.

 

Common Diseases: None specific to species, but the black ghost knifefish is very sensitive to most medications. For this reason it is recommended that UV sterilizers be used to reduce the chance of infection.

 

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Black Ghost Knifefish (Apteronotus albifrons)