I have a 60 Litre tank with Male & Female Guppies, 1 plec and 2 corys. All has been great in the tank but just recently the females have been giving birth and then dying. Its really sad, I have not been putting them into a breeding tank but just letting them give birth in the tank and then catching the fry and putting them in a breeding tank. Has anyone any suggestions, please its really heartbreaking.