Animal Stories - Clown Knifefish


Animal-World Information about: Clown Knifefish

The beautiful Clown Knifefish is probably aquarist's most favored species of knifefish!
Latest Animal Stories
carmine - 2012-01-03
I have had a clown knife fish for three years now and today found eggs in the tank. It is the only fish in the tank. Is this possible? I would think that they are infertile since there is no male fish. They are round clear balls with white membrane in them. I guess what I'm trying to ask is; they are eggs right?

Click For Replies (3)
  • Charlie Roche - 2012-01-03
    My guess based on your description is that they are eggs. However, you are right, they would be infertile. Females can lay eggs and do not need a male to do this. The eggs are just infertile. Think about chickens - they just lay eggs. With no rooster - they are just infertile eggs but the chickens will sit them anyway but no baby chick in there.
  • carmine - 2012-01-03
    Thanks, that's what I thought.
  • Alex Burleson - 2012-01-04
    If it is the only fish in the tank, your best bet is that they came from the Clown Knife Fish, in your aquarium. However, if you have invertebrates such as shrimp, or crabs in the aquarium you can assume the eggs are from them. Knife Fish, are not commonly bred in the home aquarium. If they are from the Knife Fish, they are therefore, sadly infertile and will not hatch.
Reply
Collin - 2009-08-17
Just a side note to what I read on the comments. I had a Clown Knife Fish that was 14 inches long and its favorite food was 2 inch gold fish. I would be careful with the choice of small tank mates.

Click For Replies (2)
  • steve - 2011-01-24
    Hi there I've just bought 2 clown knife fish about 4 inches they have cleared my tank guppies etc I've now done my research and knos a bit more about them. I've got 2 spotted puffers left in the tank with them they don't seem to bother each other do you think I should separate them? thanks steve
  • John - 2011-12-15
    Clown knife fish will eat anything that can fit in their mouth. so anything smaller don't.. And clown knife fish is not a community fish, BUT you can put them to any fish that is bigger than them, Some people put Arowana or Oscar as a tankmate.
Reply
scollinz - 2011-06-27
I have a 13 inch Clown Knife fish I am looking
to sell. If interested, email me and I can send you pics. Great fish and loves to eat!

Reply
david - 2011-06-12
Could I keep a Clown Knifefish in a 55 gallon aquarium? The tank will have subdued lighting and be lightly planted with cryptocorne, Java Fern and Java Moss. There will be numerous hiding places created by bogwood and rocks. I would also like to add a Red-tailed Black Shark, among other Southeast Asian fish. Would this work out?

Click For Replies (1)
  • Charlie Roche - 2011-06-13
    It doesn't sound like a real good idea. The shark fish tail would eaily fit into the Knifefish mouth and the Knifefish can grow to 11 pounds. Clownfish are the quieter of the two and usually don't cause problems but will eat anything they can fit in their mouth. But the sharks are agressive and could tease or want territory and there would be the problem.
Reply
Charles - 2011-03-25
Howard is my 26 inch clown. I have had him for almost 2 years now. He loves goldfish and will eat pellets. He lives with his friends Peter and Conan the Plecos in a 120 gal. tank. I am looking for a 200 for them.

Reply
Anonymous - 2011-01-10
How mamy chitala feed at a time?

Reply
charlie - 2010-12-12
I have a clown knife that i have had for about 3 weeks, he stays on the top of the tank, wont hide, i have noticed that he has knots on his side. he seems to be eating very well, moving around like nothing is wrong. Has anyone ever had this problem?

Click For Replies (1)
  • brandon - 2011-01-01
    I have had seen this many times. It almost sounds as tho it may be a birth defect with concerning the knots. I have owned many of these fish and for the first couple of months they sat at the top of the water and did nothing. I kinda assumed that my tank wasn't suited for them so I bought a few cave/ rock like structures and now they like to hide in those, and swim around a lot more. When I turn my tank lights on the morning they usually are found out scavenging which is probably due to the fact they're nocturnal. But my advice to you is to simply give it some stuff to hide in and it should be fine.
Reply
Jay - 2010-12-29
My 7" clown knife is having fin rot and looks bent out of shape. Any tips for treatment will be greatly appreciated.

Reply
jesse - 2009-07-20
I would like to find a clown knifefish but I don't know if he will do well in a 55 gallon tank.

Click For Replies (3)
  • dennis - 2010-02-26
    A 55 gal tank is ok for a clown knife they will grow to the tank size. I had 1 for 5 years and it got 26' long in a 80 gal tank but they do eat alot.
  • JT - 2010-04-24
    There is no such thing as a fish that "grows to the tank size", their growth may slow down considerably, but this is because they are being stunted which will eventually lead to their death. You need at the very least a standard 180 gallon, but even that would eventually be too small, and could cause them to become slightly deformed. To properly house a clown knife for life, you will need a 240-300 gallon tank.
  • Breanne - 2010-12-12
    Hi. I currently have a 16" clown knife in a 46 gal bowfront tank. He is doing wonderful but he eats about 40 large goldfish a week. He is only about 7 months old now. Make sure if you have other fish in the tank that they are large also. He will try to eat anything that fits in his mouth.
Reply
Lorenzo - 2010-10-30
Hello, I am currently going to get a clown knife fish from my uncle(he is a breeder of this fish). I want to know if I can keep him in a 45-gallon tank-no company, just him/her and a filter/pump and of course, water. Is it also OK if I dont put any pebbles OR a small cave since I heard that they need a hiding spot since they are nocturnal. However, my uncle keeps his clown knife fishes in one of those tiled ponds in pet stores(you know, the ones that usually keeps kois or carps) and I do not see any hides. I just wanted to know.Thanks.

Reply