I have 2 gold dust mollies (both males), and 3 silver mollies (2 females, 1 male). They are all in the same tank and have been for a long time. I want them to breed, as I have 4 available tanks to keep the babies now, but the only problem is that they aren't breeding! I have been watching them closely, but they aren't mating and neither of the females are pregnant (I had a gold dust female too, but she recently died.). Could there be something wrong with the water, light, or amount of feeding? I have plenty of decorations, so they can't be eating the babies very well as soon as they are born, so what's going on? Why aren't they breeding?