Make a bold statement in your aquarium with the impressive Clown Knifefish! This fascinating freshwater fish is known for its elongated, knife-shaped body, elegant swimming movements, and distinctive row of dark spots along its rear body. Its unique appearance makes it a favourite among experienced aquarists who appreciate large, predatory fish.
Clown Knifefish are nocturnal hunters that become more active in dim lighting. They can grow extremely large and require a spacious aquarium with excellent filtration, plenty of swimming room, and secure hiding places. Due to their adult size and predatory nature, they are best suited to experienced fishkeepers with the facilities to house them long-term.
Care Information
Care Level: Advanced
Temperament: Predatory; may eat smaller fish
Adult Size: Can exceed 2 feet, with some reaching around 3 feet
Tank Size: Very large aquarium required; 300 gallons or more may be needed for long-term adult care
Temperature: 75–82°F (24–28°C)
Diet: Carnivore — accepts appropriate meaty foods, including quality carnivore pellets and suitable frozen foods
Aquarium Setup: Spacious freshwater aquarium with strong filtration, subdued lighting, hiding places, and a secure lid
Why Choose a Clown Knifefish?
Unique knife-shaped body and striking spotted pattern
Graceful, distinctive swimming behaviour
Fascinating nocturnal predator
An impressive centrepiece fish for suitably equipped aquariums