Clown Knifefish for Sale
to buy a Clown
This video shows a Clown Knifefish, that's about 24" long. Click
here for more information
about buying Knifefish including Clown Knifefish from us.
the images above.
Scientific Name: Notopterus chitla
Comments Clown Knifefish are delicate, until they grow to be about 10 inches long. They grow fast, become much less delicate, and swallow any fish that
they can get in their mouths. But they are peaceful with fish that are too big for them to swallow.
As a Clown Knifefish grows it can swallow larger and larger fish, so tank mates must also grow to stay too big to be swallowed or swim fast enough to avoid being
Clown Knifefish are members of a group of fishes called
here to read a brief
article from the
Encyclopedia Britannica about this group of fish.
Here is a 6" Clown Knifefish for sale in our
to buy a Knifefish from us. At this size Clown Knives have developed the distinctive dark spots on their sides.
An aquarium with at least 29 gallons of water, an
power filter with a BIO-Wheel, a maximum of 1/4 inch of
gravel, and an
heater adjusted so the water temperature is between 78 and 82 degrees F. Click
here for more about warm water aquariums.
Each Clown Knifefish needs its own cave or piece of plastic pipe as a home. The Clown Knife in the picture at the top of this page usually stayed
near the piece of white plastic pipe that you can see in the picture. Be sure the rocks or pieces of pipe and everything else you put in your aquarium will not contaminate the water. Click
for more about how to avoid contaminating your aquarium.
When young, say less than 10 inches long, feed them live Black Worms, live
guppies, live and frozen brine shrimp, and live Ghost Shrimp. Later as they grow bigger feed them live fish. Click
here for more about Black
Worms. Click here for more about how to feed fish.
Compatibility Clown Knifefish are best kept with fast swimming fish that can avoid being swallowed, or with large fish that are too big to be
swallowed, and with catfish too spiny to be swallowed. Good tank mates are large fast swimming fish such as
Large Tinfoil Barbs,
Tiger Fish, large
Rainbow Sharks, and
Pangasius Catfish. Clown Knifefish are often seen in aquariums with
here to read more about several other groups of compatible fish.
Size and Lifespan
Clown Knifefish can grow to 32" but are rarely larger than 18" in an aquarium. They can live for 10 years and sometimes
The picture above shows a 6" long Royal Clown Knifefish. This fish is closely related to the Clown Knifefish that is shown farther above on
this page, but this Royal Clown Knife is much less common in aquariums than the Clown Knife.
We sell this fish from time to time, but it is usually not available, and we do not really know in advance when we will get some. If you want to buy one,
to see if it's available. If it is marked "Out of Stock" then check back from time to time to see if we've gotten some back in stock.
Shown above, a
nice young 3.5" long Clown
Knifefish, swimming in one
of our aquariums, when one
of us took this picture.
The advertisement, shown below, links to