Ghost Knife Fish

Black Ghost Knifefish – 3.5–4"

Scientific Name: Apteronotus albifrons
Maximum Length: Up to 18–20 inches in adulthood
Favorite Things: Dim lighting, smooth décor, caves, tubes, and calm water flow. Uses an electric field to navigate and hunt—one of the most fascinating nocturnal fish in the hobby. Eats frozen bloodworms, blackworms, mysis, and soft sinking foods.
Best Buddies: Peaceful tankmates that won’t nip fins or outcompete during feeding; ideal companions include angels, peaceful cichlids, rainbowfish, larger tetras, and loaches. Not suited for small community fish or aggressive species. Best kept in at least 55 gallons, larger as it matures.