Black Ghost Knifefish
Apteronotus albifrons
Water Parameters
About
One of the most fascinating fish in the hobby. Completely black body with two white marks on the tail and snout. Swims by undulating the anal fin, able to move forward and backward. Uses a weak electric field to “see” in the dark.
Behavior & Temperament
Nocturnal, shy knifefish that uses electrolocation to navigate and locate prey. Territorial with conspecifics. Can be trained to eat from the hand.
Feeding
Carnivore - bloodworms, brine shrimp, shrimp, krill, fish pieces, insect larvae. Can be trained to accept pellets. Feed at night.
Breeding
Rarely bred in captivity. It is believed to spawn during the rainy season in rivers. Requires specific conditions.
Care Notes
Mandatory hiding place (black PVC pipe, hollow log). Fully nocturnal – low lighting. Scaleless – very sensitive to medication and water quality. Do not keep two together (they fight).
Compatibility
Peaceful with fish that do not disturb it. Territorial with other electric fish and conspecifics. May eat very small fish. Ideal with peaceful medium cichlids.
Quick Summary
| Scientific Name | Apteronotus albifrons |
|---|---|
| Family | Apteronotidae |
| Category | Fish |
| Care Level | Advanced |
| Water Type | Freshwater |
| Max Size | 50.0 cm (19.7") |
| Min Tank | 300 L (79 gal) |
| Min Group | 1+ |
| Diet | Carnivore - bloodworms, brine shrimp, shrimp, krill, fish pieces, insect larvae. Can be trained to accept pellets. Feed at night. |
| Temperament | Nocturnal, shy knifefish that uses electrolocation to navigate and locate prey. Territorial with conspecifics. Can be trained to eat from the hand. |
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