ok. i would say your best bet is to keep the adults around with the fry because they will eat off alot, if not all of them. sounds mean but this will keep your tank population lower. second, female guppies can hold sperm inside them and be pregnant all over again. third, ive heard somewhere that mollies and guppies will crossbreed so having male guppies and female mollies or vice versa will just put you back in the same situation, so i suggest either keeping the adult fish around to lower your population levels.. giving some away.. or letting them grow in a seperate tank and throwing them in your koi pond
