More than one african brown knife?

Tiller11

Feeder Fish
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May 27, 2012
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From what ive gathered about any knife fish they will get a long for a lil when they are young but once they get bigger they will begin to fight. So i would say no but if u have an extra tank or somethin u could try n if they start to fight move one and sell it or somethin....

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fishman61

Gambusia
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Apr 2, 2009
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I agree, they become very territorial when they mature, the same goes with certain plecos
 

cichlid_obsessed92

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Oct 14, 2012
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lowell, massachusetts
Every knife I've owned including abk have started out great and not bothered tankmates and then one day they decide there mike tyson's offspring and challenges all my fish lol

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jschall

Feeder Fish
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Apr 9, 2009
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Chico, California
So this is looking like not a good idea.

Is there a slightly larger species of knifefish that would be good for a 150 gallon? ABKs are pretty small.

Ideally from africa.
 

benzjamin13

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Sep 12, 2005
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There's another species of Knife from Africa, P. Afer. However, they are a lot more aggressive. If you want to keep the African theme, why not just stick with one ABK?
 

shipmonkey

Candiru
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Jan 17, 2010
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I know the thread is a little old, but African brown Knifes do great in schools. The main idea though is that you have to have school. Two doesn't work nor does four, but nine or ten works fine. I keep a school of ten in a 240g. The school started with six and I have added the extras over the last couple years. Even new much smaller knifes are quickly accepted into the school.
 

Charney

The Fish Doctor
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Nov 15, 2005
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I know the thread is a little old, but African brown Knifes do great in schools. The main idea though is that you have to have school. Two doesn't work nor does four, but nine or ten works fine. I keep a school of ten in a 240g. The school started with six and I have added the extras over the last couple years. Even new much smaller knifes are quickly accepted into the school.
That must have been an awesome sight. Any chance you have a picture?
 
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