Black Ghost Knifefish

Aquarium Fish Sale offers the only knife fish that is tank raised for the trade. Fortunately, the black ghost knife is also the most popular knife fish for aquariums. In the wild, native fishermen once believed that the spirits of dead fish reside in the Black Ghost, hence the name. These fish grow very slowly and generally eat at night. Frozen foods or live small worms are preferred.

Quick Facts

Care Guide

Tank setup: Give them hiding places like large tubes or caves, dim lighting, strong filtration and a tight lid. They are most active at night.

Feeding: Feed frozen foods like bloodworms and brine shrimp once a day, ideally in the evening. Many learn to take sinking pellets.

Tankmates: They are peaceful but will eat very small fish. Keep them with calm fish too large to fit in their mouth, and only one knifefish per tank.

Good to know: Knifefish sense their surroundings with a weak electric field, which helps them hunt in the dark.