
Black ghost knifefish
Black knife-shaped body, a pale forehead line and two pale tail rings; a long anal ribbon fin runs below the body, with no ordinary dorsal fin.
- Adult length
- Up to 50 cm
- Water temperature
- 23–28 °C
- Lifespan
- Up to 15 years
- pH
- 6–8
- Hardness
- 5–10 dGH
- Natural habitat
- Inhabits fast-flowing creeks with sandy beds.
Small fish and shrimp are potential prey; plan daytime shelters.
Appearance and identification
Unlike the brown African knifefish, it has conspicuous pale tail rings.
Same-species behaviour
More active in dim light; uses a weak electric field. Adults may bully conspecifics.
Space requirements
Plan substantial turning space for the adult, with clean oxygenated water and daytime shelters. A 180 × 60 cm base is the reference for one adult.
Diet and feeding
Offer suitable animal foods and check that it feeds.
Compatibility limits
Small fish and shrimp are potential prey.
Aquarium environment
Plants can shade shelters; leave swimming space.
Sources
www.fishbase.se ↗ 2026-10-25
www.seriouslyfish.com ↗ 2026-10-22
www.tfhmagazine.com ↗ 2026-10-22
www.aqua-imports.com ↗ 2026-10-22
