sexing polleni

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The only picture that is any use for sexing is the third one down and from that I would say a female .
What you look for is the shape of the top and bottom fins ,on female they are squared off and in males they start to point out .
Can't be 100% from that photo but at 4" you can sex them properly .
Best info on these fish is here http://www.cichlidae.com/article.php?id=76
Check it out.
 
Looks like a female.

At that size my male had already started developing the rounded forehead.

Male at 5"

P1110809.JPG
 
from what i have read and observed, i now believe it to be a female as well. thanks for the help.
 
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