Hello all. I have a 20 gallon tank with 2 large plants and a moss ball. As old posts said I went through many bad batches of guppies (all died) from petsmart. Eventually I got a pregnant one (she died too) who had about 7-10 fry. ALL of those fry have made it and have grown to be beautiful guppies. Since then I have had a few small births and my number is around 14 or so adult guppies. A few weeks ago I lost 3 females back to back and I think my water quality got away from me while I was out of town for two weeks. Changed the filter system and all is well. Sadly, as well as my guppies have done they havent produced any fry in a long time. Other than the one spell of poor water quality due to my pump dying nothing in the aquarium has changed. I have read where some suggest a cooler temperature to encourage breeding, and my temp was pushing 80, so I dropped it down to about 72. Other than that I have found no suggestions for what could be stopping my guppies from breeding. Two of my females are HUGE and look like they could pop at any moment but they have looked like that for weeks. I know guppies eat their young but I have always had some survive and I have more cover now then I ever have. Any suggestions would be greatly appreciated, thanks!