Personally, I have never heard of Gambusias and Guppies ever having been crossed. Two different genera. If you were successful in crossing the two, I would suspect the hybrids would be sterile, donkey x horse= mule. I have to disagree with you, Old Salt, on the size increase in Guppies. Increased size came from the dilligence and hard work of early breeders like Paul Hahnel and his contemporaries. Just my opinion.
Tony
|