Animal Stories - People Talking About Knifefish


Animal-World info on Zebra Knifefish
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Chris Durgin - 2010-01-18
I was wondering where I could buy one of the Zebra Knifefish at, because I really want one. Any tips on where I could buy one, they seem small enough to put in a 55 gallon. I want to see him grow into the tank and again if you know where I could at least order one online or anything let me know.

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  • Todd Appel - 2010-04-11
    There's a curent auction listing for them on aquabid.com
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Animal-World info on Black Ghost Knife Fish
Animal Story on Black Ghost Knife Fish
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Tommie - 2009-12-29
I have a 29 gallon tank with quite an assortment of fish ranging from bettas, sharks, dragon fish, and one ghost knife I call my queen. She is beautiful and seems quite content. although she stays hidden during the day she comes out at night and eats from our hands. She is definitely my favorite!

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kyle - 2009-12-27
My 44 gallon tank is not overcrowded. Firstly most knifefishes never grow 20 inches in aquariums, that twenty inches is based on a wild caught specimen out of the spacious amazon river. Secondly, have you heard of the inch per gallon rule. Every inch of fish needs a gallon of water. Tiger barbs and flying foxes grow three inches long; 6 total, times 3 inches equals 18 inches and a required 18 gallons of water. The 18 inches of the barbs and flying foxes and the 12 inches of firemouths and the 5" knifefish puts me not only under the limit according to the inch per gallon rule; but allows the knifefish to grow to a length of 14" long. Thirdly, knifefish are one of the slowest growing species of freshwater fish in the world. It will take years for my knifefish to even reach 14" in length. By the time he reaches 14", almost everything else in my tank will be dead. That's how long it takes knifefish to grow. I bought mine over two years ago when he was just under three inches long. That is an inch per year growth rate. And when he does get long enough, I have a 200 gallon tank with oscars he can move into. I am just growing him out in my more peaceful tank until he is big enough to live with some oscars with out getting eaten. Lastly, bottom feeders like plecos don't count towards the space required for the tank. Check your facts before criticizing someone who has 25 years of experience with fish.

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mckenna - 2009-12-02
I have a 350 gallon tank with a small amount of fish. I have 3 dragon gobies that seem very timid and 3 ghost fish that only come out at night. I'm very fond of this type of fish but am having trouble finding out other types of fish to put in it. My oscars and parrots oddly get along great. I need some suggestions on other fish that will get along to put in my tank.

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Koop - 2009-10-10
Woah your 44g tank is way overcrowded! The knife alone will get 20". You need to rehome some fish.

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Josh - 2009-09-02
I got two black ghost knifes a year ago and they get along fine. I've been feeding them frozen bloodworms and they've started eating out of my hand. They seem to have gotten used to the light, now it looks like they couldn't care less if the lights are on or off, but when I turn off the lights, they immediately rush out of their caves and swim vertically along the top of the water, looking for food. Most awesome fish ever!

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Animal-World info on Clown Knifefish
Animal Story on Clown Knifefish
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xtasy - 2009-07-23
If you want to get a clown knife it will be fine in a 55 gallon aquarium for awhile. Until about 1 1/2 years when it gets over like 16inches long. But I have 1 in my 55 gallon and it is very happy with no space problems. Hope this helps. :)

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Animal-World info on Black Ghost Knife Fish
Animal Story on Black Ghost Knife Fish
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kyle - 2009-07-13
I have a 5" black ghost knife fish in my 44 Gallon Tank along with 4 tiger barbs (1 albino), 2 flying foxes, 2 6" Firemouth Cichlids and a 10" long pleco. These knife fish are very shy. Mine will only eat if the lights are off. Mine is also a very picky eater; he only eats frozen bloodworms. I would only recommend this fish to experienced aquariasts. They are very cool.

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Barry - 2009-06-11
Shannon your tank is way too small for your knife fish. I would recommend a tank no smaller than 4ftx18in with lots of wood or rock caves for them to hide, and feed him frozen blodworms, brine shrimp and sinking pellets. My knifefish also loves my angelfish eggs!

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Animal-World info on Clown Knifefish
Animal Story on Clown Knifefish
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Theresa - 2009-05-26
I purchased my clown knife (named "Buck") about four months ago. He was only about 3 1/2 inches long at that time. He is now 12 inches long. He is very friendly. Comes to the top of the tank when I approach as if he knows he's getting fed. He is in a 125 gallon tank along with a Shovel nosed Catfish, 3ea. 4-6" discus Fish, a 5" silver arowana and 4ea. 5-7" plecos. They all get along beautifully. This is just one of six tanks that I have in my home.

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