convict breeding SIZE.....

Well, from what it sounds like, your Cons aren't ready to breed anyways... When they reach about 4 - 5 inches, that's when you should be looking for whether or not they are going to mate...
 
Convicts will reach 4-5" but reach sexual maturity at an earlier age. My cons were 2.5-3" when they first spawned. The male was slightly larger than the female.

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my brother has convicts and their eggs hatched yesterday they are about 2"-3", they have been breeding since about 1.5".
 
my female convict at 1 INCH, bred.
 
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