Animal Stories - Knifefish


Animal-World info on Clown Knifefish
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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?

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  • 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.
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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.

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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.

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  • 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.
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Animal-World info on Black Ghost Knife Fish
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Heather - 2010-12-09
Our BGK has been doing well since we got him in May, but now I'm getting worried. He recently came out of a growth spurt and now will barely eat and sleeps a lot. Of course, I've been panicking lately when I find him asleep because he sometimes doesn't respond or move when I touch him. (We hand feed ours and he loves to be petted.) I'm trying to figure out if this is normal behavior or if something could be wrong.

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Chad - 2010-08-01
What are the odds the Black ghost knife will eat neon tetras?

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  • janine - 2010-08-18
    There seems to be 2 stories. Definitely will and they won't. Just be sure there aren't too many fish in the tank and perhaps feed your bkgf well. At night if possible. My ghost will chase fish when annoyed by them but doesn't go out of his way to fight. Nosy perhaps but not violent.
  • Becka - 2010-10-09
    From our experience, if the neons go into your BGKF's cave, pretty high... We got our bgkf (5ish in. at the time) at the same time as our neon tetras. We'd been told by the pet shop they'd be fine together.
    It wasn't until we saw tetras going into the cave but never back out we did some research and found bgkfs find neons pretty tasty...
    He had a go at our blue longfin fighter too, though the fighter lived to tell the tale (had one eye shocked out and some pretty bad fin damage though).

    It's at your own discretion really. If you DO decide to put both in the same tank just make sure you have a big enough school of tetras, a big enough tank and feed your bgkf at night. That's how we've kept our remaining tetras alive now :)

    All the best, they're fun fish really (minus blowing out eyeballs sometimes).
    I hope our novice mistakes can be of help :)
  • Heather - 2010-12-09
    The odds are very good if the BGK is hungry and the Neons are small. Our larger Neons don't seem to be on the menu though. Our BGK is approx 10" now and prefers bloodworms to anything else.
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Animal-World info on Zebra Knifefish
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leonard - 2010-11-16
I got 2 big fish tanks, 350 gal with too wolffish, a jack demsey, about 3 others in there too, & 75 gal wide, that holds my gymnotus knifefish or banned fish, I kinda wanna put knifefish in the big tank but I think my wolffish will kill it.

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Animal-World info on Clown Knifefish
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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.

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Animal-World info on African Knife Fish
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Heather - 2010-08-16
I currently own 2 African Knifefish. I've had the older one for awhile and just recently bought a baby one. At first the older one would pick on the baby but now they are best buddies. The older one loves to come up to the front of the tank to greet us as we watch them & he also follows our faces/fingers. They love hand feeding. Esp live black worms, blood worms, and brine shrimp. They have many hiding places but don't go in them as much as before. The 2 fish follow each other everywhere. It's adorable! (even if the older one seems to get annoyed sometimes) lol I highly recommend these fish. They may not have much color, but they have one heck of a personality! :)

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  • debbie - 2010-10-23
    I have 2. They play. I bought a bigger one today. He hides. He is quite bigger.
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Animal-World info on Clown Knifefish
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Tan Hui Chun - 2010-09-17
Can clown knife fish mix with spotted gar or alligator gar? why the clown knife fish fin (below one) become white color?

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Animal-World info on African Knife Fish
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Rameres Jr Cumba - 2010-09-02
I currently had 2 african knife fish from a few days now. They really skittish at first, but went I added a few fish with them like a ladder loach, they became more regularly seen during the daytime hours, become increase activity. Recently one had the aggressive and occasionally chasing the knife fish.

Is it possible to spawn them? I have a slim and chubby one.

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