Species profile
Black Ghost Knifefish
Apteronotus albifronsBlack Ghost Knifefish (Apteronotus albifrons) is a solo centerpiece fish for a cycled 100+ gallon freshwater aquarium. Plan for about 18 inches as an adult, 75-82°F water, pH 6-7.5, and advanced care. Keep only one per tank, and choose tankmates with matching water needs and low aggression.
Community leaningAdvanced care
100 galMinimum tank
18 inAdult size
1Schooling minimum
75-82°FTemperature
Water Range
- pH
- 6-7.5
- GH
- 2-12 dGH
- KH
- 1-8 dKH
Behavior
- Temperament
- Moderate
- Fin nipping
- 0/5
- Territory
- 3/5
Diet and Care
- Diet
- carnivore/omnivore
- Diet difficulty
- 3/5
- Care difficulty
- 4/5
Planning Notes
Predatory or specialist fish; plan for adult size, secure lids, and meaty feeding needs.
This species may need live, frozen, fresh, or otherwise specialized foods.
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