Overview
The African Brown Knifefish (Xenomystus nigri) is a intermediate freshwater species known for its brown-olive coloration. Smaller knifefish. Bottom to Mid.
Origin & Appearance
Origin: West Africa.
Colors: Brown-Olive.
Body Shape: Elongate (long/slender). Typical adult dimensions: 30.0 x 3.6 x 4.5.
Sexual Dimorphism: Minimal.
Tank & Water Requirements
| Min Tank Size | 53 gallons |
| Temperature | 72–82°F |
| pH Range | 6–7.5 |
| Water Hardness (GH) | 3-12 |
| Bioload | high |
| Oxygen Demand | medium |
| Plant Safe | yes |
| Aquarium Position | Bottom to Mid |
Behavior & Activity
Nocturnal undulator; hides during day; backward and forward swimming using anal fin wave motion; shy
Speed: 35/100Aggression: 5/10nocturnal
Breeding
Difficult; egg depositor
Common Diseases
💊 Ich💊 sensitive to medications
Expert Notes
Smaller knifefish; nocturnal