Black Ghost Knife Fish

DescriptionFamily: Apteronotidae Kingdom: Animalia Order: Gymnotiformes Origin: Amazon basin in Peru, along with the river basins in Paraguay and Venezuela. Lifespan in the aquarium: 7 years Adult size: 15–20 inches (38–50 centimetres) Distinctive features: An eel-like appearance with a slender scaleless body, covered in the skin with a mucous coat.Tips from the breeder: Usually, it kept to itself in a community aquarium, and it is known for being much of a bully towards other fish.