I have a tank with a good amount of fish in it. I have 2 female swordtails as wellas a male and 3 female guppies as well as a male. My problem is not with getting the swordtails to breed, however the guppies just wont breed. It seems that my male guppy is confused as to weather or not he is a guppy or a swordtail. He spends hours chasing around only one of the swortails trying to mate with her and only her. What can I do to get my guppy to leave the swordtail alone and start breeding with his own kind?