Hi Remmy

..what size tank is your molly in and how many tank mates? I don't know if you moved her to a seperate tank? But IMO, I would leave her alone, put lots of plants for the fry to hide in, and you'll be surprised how many you get. If your serious about not losing one fry, people do use the breeding net/box. My experience and observations are that the box is soon abandoned, due to stress on the fish and soon put back in the community. I would really try plants, and lower plants along the gravel, it'll be a great place for fry to hide..good luck, ohh and no there really isn't a certain time they give birth.
