If you already have all but the one more male and everything is fine, i wouldn't touch anything and make sure that I breathed just right too. As for stores buying guppies, unless they are having a problem with their own feeders, it's not likely they awould buy guppy fry unless they were a special color strain or something akin to that. Still, never hurts to ask them.fishisme said:i had 1 beta femail in with em all the gups and it worked. well it looks like my gupies are pragnant so i will have another 1000 more lol. if i have some more babies think the pet store will buy them from me?