Animal Stories - People Talking About Knifefish


Animal-World info on Black Ghost Knife Fish
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keesha edward - 2011-04-09
Hi there. My husband and myself purchased our two ghost knives about 3 years ago or so. They were tiny when we first bought them, about 2 inches long. They are now about 10 inches. T o our surprise last night we saw a ghost kinfe of about 3 inches swimming around. This came as a complete shock as we were not expecting them to have babies at all. In all the years we have had our tank none of our tropical fish have bred. Im not sure how big they are when they are born so perhaps this fella has been around for a while and we just have not noticed? We have a tank of about 580L. We very proud and quiet amazed that this has happened as I believe this is very unusual??

keesha edward
south africa

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Animal-World info on Clown Knifefish
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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.

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Animal-World info on Black Ghost Knife Fish
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Vikki Fraser - 2011-03-15
Hello I hope someone can help I have a black ghost knife fish and am concerned that he is scared in my tank he is in with a red tailed shark and the shark will not leave him alone..is the red tail playing or being aggressive I am not sure also are you better feeding late at night so that the ghost knife fish is getting enough food?

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Animal-World info on Bronze Featherback
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hasham - 2011-03-10
These fish are territorial with other of same kind and quite aggressive to other fish as well. So not peaceful at all. It would like to dig in substrate much like Cichlids. Mine would take sinking pellets and feeder fish.

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Animal-World info on Black Ghost Knife Fish
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cspruce427 - 2011-03-06
Most pics show jet black ghost knifefish, your pic shows a grayer fish like I just bought. Can you tell me why?

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Anonymous - 2011-02-25
Hi, last night when feeding my black ghost knife fish I noticed he has a scratch on the top of his back! I'm kind of worried about him and was wondering if there is anything I can do for him? It's almost half an inch long and I have no idea how he could of gotten it. Is there anything I can do for him? Or will it just heal on its own?

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Amy - 2010-08-04
I was wondering what is the smallest size of tank you can put a 4in BGK in? We had one and the guy @ the pet store said it would do fine in a 10g tank with 2 tiger barbs (I think that's what they're called) an angel fish a goldfish and a pleco and a molly. They also told us to feed it freeze-dried bloodworms. It wouldn't eat them and it died and I was wondering what we did wrong and how to correct it so if we get another one the same thing doesn't happen to it. Because obviously we did something wrong cause it died. Please any advice would be helpful. And if it was stupidity feel free to tell me that as well.

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  • janine - 2010-08-18
    Amy there may have been something wrong from the get go. Your bkgf may have had a problem b4 he got there. I have a bgkf and he has been doing wonderful and we have some of the WORST water in the country here to work with. That is WAY too many fish to put in a ten gal tank with a ghost fish unless you only mean to do it for a short while. We kept ours in a ten gal till he outgrew that and he lives with an upside down catfish. Now in a 20 gal tank and is too big for it! So, you can't give him too many neighbors. They are scaleless which is one thing you need to remember, can't medicate the water for them as you would for others and watch their skin for any breaks in color or smoothness to let ya know if you need to pay attention to water quality or tankmate fights and such. Injuries, parasites or fungus. We really delight in our black ghost knife fish, he loves to frolick in his tank which he seems to be a watchdog over. :) Our knife fish is over ten inches long now, chases that catfish around when the catfish pokes him as he invades his cave. It's just all so funny. He barks at the catfishes house sooooooooooooo funny. But we are blessed by him. Try again sweetheart, k? But DO be prepared to get a bigger house for him and DO give him a log or cave and some deco to hide in, k? I would choose peaceable tankmates for your black ghost. No barbs! Meaning none of those barbs on the fish because a skin break can mean sick or loss of the black. We pray for ours. He a happy happy fish and I am soooo glad we bought him.! All the best and feel free to ask anything.
  • Ashlee - 2010-08-22
    BGK's need like 100 gallons. Always do plenty of research before you buy. That person at the petstore has no idea what they're talking about.
  • Anita - 2011-01-05
    Amy, don't take this the wrong way but what are you doing with an angel, 2 barbs, a goldfish, a pleco and molly in a 10 gallon? That is a majorly over crowded tank! Also, goldfish should not be a part of that group at all. Pick tropical fish or goldfish. Also, your angel and your pleco should both be in bigger tanks. That's cramping them.
    One, BGK's need a lot of room. I didn't even think about getting my first one until I had a 60 gal to put him in and I put him there knowing that there was a good chance I was going to have to move him into a larger tank in the future. Second, most fish don't seem to like freeze dried food all that well. They will eat it, but they prefer frozen or live. You have to make sure your BGK is getting enough good food and freeze dried wasn't going to do the trick. Mine personally loves his frozen blood worms. He also gets omega one flakes, frozen brine shrimp, frozen mysis shrimp, and sometimes live worms and shrimp.
    My advice: don't get another BGK until you have a much bigger tank and are willing to spend the extra money to buy frozen or live often.
  • Anonymous - 2011-02-13
    10 gallon way too SMALL! feed live food!
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dave - 2011-02-12
What are good tank mates for BGK?

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Andre - 2010-06-25
I just recently bought 2 BGK from petsmart is there any given advice to make sure that these beautiful creatures will live a long happy life?

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  • LasColinasCichlids - 2011-01-13
    First of all, you should only keep ONE BGK in a tank (also no other fish similar to him, such as other knifes, eels...).

    BGK need around a 50+ gallon tank when they get bigger as a minimum. I currently have mine in a 29 gallon, but he is only 3 inches long and is only housed with two small cichlids.

    Make sure your tank has been fully cycled and that there is no ammonia and the pH level is between 6.8 - 7.4 Temp should be between 78 and 82 degrees F.

    These beautiful creatures are nocturnal, so they hide during the daytime in dark caves and plants, and come out at night to feed and explore. They live on insect larvae (or however you spell it) in the wild...I feed my BGK, "Sparky" freeze-dried bloodworms, which he loves. I will be adding shrimp to his diet as well. I also provide him with flaked and pellet food that he once in a while will munch on.

    My advice is to return one of the BGK fish to your petsmart, and then find the employee that allowed you to purchase two for the same tank and smack them for me!

    I don't know what tank size you have, but you will need a pretty large one soon depending upon on fast your BGK will grow...I keep referring to you as only have ONE BGK in hopes that you will return one.

    BGK have a faint electrical charge and use something similar to sonar to navigate their environment and search for food. Another BGK (or similar made fishes such as eels, clown knifes, african brown knifes...) will interrupt their sonar ways and can cause your beloved fish to not act right and lead to stress. In the wild it is different because they have the entire Amazon River to swim through and can avoid one another, but sticking two in a tank, and they cant get far enough away. And as BGK get older, they become aggressive with other BGK unless they are in the hands of an experianced breeder/wholesaler.

    Any fish small enough to fit in the BGK's mouth, will probably end up there. They general do not bother other tank mates as long as they dont bother them. Remember, the BGK doesnt have scales and is highly affected by most medications you may put in your tank. Water conditioners, pH Balancers, and StressZyme are okay...but most other things can kill them!

    A lot of people have a lot to say about how big these guys get. It all depends on the tank you keep them in and what else is in the tank. Don't get me wrong, my BGK will NOT stay in a 29 gallon, but I will keep him in a 60 gallon when it comes time...which I should have a good year or two until it is completely needed. In captivity they general reach around 12". Some max out at 9-10" if kept confined (not nice!), and others kept in VERY large tanks of 125gallons+ can reach up to 18-20"!

    Hope this helps. If you need more info, you can find me on tropicalfishkeeping dot com and I am LasColinasCichlids. That is also my tag on youtube with my aquarium videos.
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Animal-World info on Clown Knifefish
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Anonymous - 2011-01-10
How mamy chitala feed at a time?

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