Black Ghost Knifefish

The Black Ghost Knife Fish is a truly unique and elegant freshwater species, admired for its smooth, ribbon-like body and graceful swimming style. Native to South America, this nocturnal fish uses weak electric signals to navigate and communicate, making it one of the most fascinating aquarium inhabitants. Its jet-black coloration with striking white markings on the tail and nose makes it instantly recognisable.

Care Level: Intermediate to Advanced
Maximum Size: Up to 18–20 inches
Tank Size: 100 gallons+ recommended
Diet: Carnivore – thrives on a varied diet of frozen/live foods such as bloodworm, shrimp, and small fish; can adapt to high-quality sinking carnivore pellets
Temperament: Generally peaceful, but territorial with its own kind; best kept singly or in very large aquaria
Water Parameters:

• Temperature: 24–30°C

• pH: 6.0–7.5

• Hardness: Soft to medium

Why Choose a Black Ghost Knife?

• Graceful, mesmerising swimmer that becomes the centrepiece of any tank

• Intelligent and interactive – often recognises its keeper over time

• Rare and unusual species, highly sought after in the hobby

⚠️ Note: Requires a large, well-filtered aquarium with plenty of hiding spaces such as caves or pipes. Not recommended for small aquariums due to its adult size and active swimming behaviour.