Black Ghost Knifefish (Apteronotus albifrons)
Known for its ribbon-like swimming and electrolocation, the Black Ghost Knife is a striking and intelligent nocturnal fish best suited for experienced keepers.
 
Size: Up to 20 inches (50 cm)
Tank Size: Minimum 100 gallons
Care Level: Advanced
Diet: Carnivore – frozen bloodworms, brine shrimp, small meaty foods
Aggression Level: Semi-aggressive (territorial with other knifefish)
Compatibility: Peaceful with large, non-nippy tankmates
Notes: Needs plenty of hiding spots and low light; avoid sharp décor; sensitive to poor water quality