Brown Ghost Knife Fish
Apteronotus leptorhynchus
Also known as: Brown Ghost Knife Fish, Long-nosed Knife Fish
Origin: South America
Water Parameters
Quick Stats
- Max Size
- 35 cm
- Min Tank
- 200 L
- Lifespan
- 8-12
- Swimming Level
- bottom-middle
- Schooling
- No
- Diet
- carnivore
- Temperament
- semi-aggressive toward other knife fish; peaceful with larger species
About
Apteronotus leptorhynchus is native to the Orinoco and Amazon basins of South America and is one of the most studied weakly electric fish in neuroscience research, known for its ability to shift its electric organ discharge frequency. Its smaller size and relatively peaceful nature make it suitable for a well-maintained large community tank.
Care Guide
Water: 24-28°C, pH 6.0-7.5, soft to moderately hard; good filtration and oxygenation required. Tank: Minimum 200L, dimly lit, hiding tubes and driftwood, moderate current. Feeding: Carnivore; live and frozen bloodworm, daphnia, brine shrimp, small invertebrates. Behaviour: Nocturnal; active electric field user for navigation and social interaction. Compatibility: Peaceful with larger fish; do not mix with Black Ghost Knife Fish.
Buy Brown Ghost Knife Fish from FinsHQ shops
Shops currently listing this species with stock available
Sell Brown Ghost Knife Fish in your shop?
Join aquarium shops already using FinsHQ. Get a beautiful webshop, mobile app, and inventory management — built for aquatic retailers.
Start your free store