Centipede Knifefish
The Centipede Knifefish earns the name by creating the illusion of small walking centipede feet as the long anal fin undulates. This wild knifefish from the Amazon basin also earns another name – the leaf knifefish – due to its habit of finding leaves to lie beside until night, when it awakens and begins the hunt for small insects. Centipede knifefish will adapt to frozen brine and other foods but it is best to have a supply of live brine or live black worms to help with the transition. Suitable for most community aquariums without very small micro species (shrimp, micro rasboras), an addition of a centipede knifefish will create quite the stir. AND these knifefish only grow to nine inches, so they are never a threat to mid-size tetras and barbs.
Quick Facts
| Feature | Detail |
|---|---|
| Common Name | Centipede Knifefish |
| Scientific Name | Brachyplatystoma rousseauxii |
| Origin | Amazon Basin |
| Size | Up to 9 inches |
| Feeding | Live brine, live black worms, frozen brine |
| Behavior | Diurnal hunter, hides during day, active at night |
| Compatibility | Community tanks with mid-sized fish; avoid very small species |
FAQ
What do centipede knifefish eat?
Centipede knifefish eat live brine, live black worms, and frozen brine. Live foods are recommended for the best adaptation and feeding success.
How big do centipede knifefish grow?
Centipede knifefish grow up to nine inches in length.
Are centipede knifefish safe to keep with other fish?
Yes, they are safe with mid-sized tetras and barbs. Avoid keeping them with very small species like shrimp or micro rasboras.
Bella Ince –
The centipede knifefish is a fascinating addition to my aquarium. It moves slowly and gracefully, and the way it undulates with its tail is very unique. I feed it live black worms twice a week and it’s always active at night. It doesn’t bother my tetras and seems to be adjusting well to the tank.
Lauren Arnold –
I was initially unsure about adding a larger fish to my community tank, but the centipede knifefish is peaceful and doesn’t dominate. It hides during the day and comes out at night to hunt. I’ve had it for three months and it’s thriving with regular live food.
Evan Coleman –
The fish looks like a walking centipede when it moves, which is absolutely charming. It’s not aggressive and blends well with the other fish. I keep it with barbs and it doesn’t interfere with their behavior. Feeding it live brine has made a big difference in its health.