My gold mystery snail and my black mystery snail mated about 3-5 days ago (I cant really remember). The gold one was on the top when mating, so I assume that the black one is the female and will be laying the eggs. I have two black mystery snails, and I can't tell which one was the one that mated. Anyway, I only just lowered the water level yesterday. The snails go up to the top to breathe, as usual. One of the snails halfway crawled out of the water (i was very hopeful and excited at this point) but then crawled back in the water and went around as usual. When will my mystery snail lay her eggs? Do I have to do anything special other than lowering the waterline? I have lowered it about 4 inches so far. Thanks!