03-13-2011, 10:59 PM
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I dont think glofish can mate with guppies, as glofish are danios (i think, correct me if I am wrong), while the guppies are livebearers.
Jakiebabie is right, that a female guppy can have a couple of fry groups without another male in the tank as long as she was exposed to a male guppy within a time period before (forgot the time period, but it is like months or something like that).
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