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Aggressive behavior of small guppies
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svkr2k
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Joined: 28 Mar 2010

PostPosted: 2010.07.27(Tue)17:21    Post subject: Aggressive behavior of small guppies Reply with quote

Hi,

I have 4 large guppies with nice, large tails. Along with them, I have three smaller guppies also. The larger ones are approximately 3-4 times the size of smaller ones.
Two of the smaller guppies keep chasing the larger ones and are always going behind them. They are not targeting the fins. But, they follow the larger ones very closely and it seems like they are harming the larger ones (the larger ones doesn't seem to like this behavior and tries to get away from the smaller ones).
I'm worried about the stress for the larger ones (the ones being chased).

Please advice.
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diademhill
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Joined: 18 Apr 2007

PostPosted: 2010.07.27(Tue)17:27    Post subject: Reply with quote

The smaller ones are trying to mate -male guppies are not fussy and will try to mate with anything.
Add some floating plants or plant strands if you can.
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svkr2k
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Joined: 28 Mar 2010

PostPosted: 2010.07.28(Wed)13:18    Post subject: Reply with quote

Thank you for the reply, Mr.daidemhill

Please refer to the following picture:
http://www.flickr.com/photos/svkr2k/4839201571/

I can't believe that the small one is trying to mate with a much larger one. I have taken a picture of this behavior Smile .
There is another larger guppy (larger than the one shown in the picture) which is also being chased frequently !

Also, I believe that the smaller one is a male. Is the larger one female?
Please confirm.
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diademhill
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Joined: 18 Apr 2007

PostPosted: 2010.07.28(Wed)16:42    Post subject: Reply with quote

They are both males.
Male guppies are not fussy and will attempt to mate with fish much larger than themselves.
Female guppies don't have much colour and have an unrolled ventral fin. They can grow much larger than males - 3" is not unknown.


A popular trick, in tanks much larger than yours, is to keep female platies with male guppies as the males mate the platies and no fry result but the males are less irritating to other fish.
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svkr2k
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Joined: 28 Mar 2010

PostPosted: 2010.07.28(Wed)23:12    Post subject: Reply with quote

Do I have any other option other than adding platys?
Today, I noticed that the smaller one is trying to "stand face to face" with the larger one. Is it targeting it's eyes?
I'm very much concerned about the two larger ones, as they are the most beautiful ones in my tank Sad
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diademhill
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Joined: 18 Apr 2007

PostPosted: 2010.07.28(Wed)23:23    Post subject: Reply with quote

Your tank is too small for platies and is already overstocked.

You could try adding water lettuce or bunching plants that reach the surface to break up the fish's line of sight.
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Caton
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Joined: 28 Jul 2009
Location: Washington State, USA

PostPosted: 2010.07.29(Thu)11:52    Post subject: Reply with quote

svkr2k wrote:
Thank you for the reply, Mr.daidemhill


He, is a she Rolling Eyes
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svkr2k
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Joined: 28 Mar 2010

PostPosted: 2010.07.29(Thu)12:51    Post subject: Reply with quote

Hi Caton,
you wrote:
"He, is a she"

Sorry for confirming again:
Larger guppy shown in the pic : female
smaller guppy : male

Is that right?
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Caton
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Joined: 28 Jul 2009
Location: Washington State, USA

PostPosted: 2010.07.29(Thu)15:06    Post subject: Reply with quote

Sorry for the confusion, yes you are correct, If you read the quote, you will see what I mean.
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rales12
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Joined: 03 Nov 2009
Location: Wyoming

PostPosted: 2010.08.02(Mon)4:24    Post subject: Reply with quote

Caton wrote:
Sorry for the confusion, yes you are correct, If you read the quote, you will see what I mean.


Or you could just clarify.

svkr2k - what he meant is that diadmhill is a she... your guppies are still males. Wink
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