Knife Fishes

Black Ghost Knifefish (Apteronotus albifrons)Black Ghost Knifefish (Apteronotus albifrons)
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 impor...
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About Knife Fishes

Knife fish in this category refer to South American fish of the Gymnotiformes family. These knife fish are popular in the aquarium keeping hobby for their unique knife-like appearance. Click a link to the left to learn more about these fish.