HI everyone, I have 5 baby mollies that I put into a nursery tank. When I just looked in the nursery tank, I see only 4! I look into the main tank and there he is swimming all about in the bottom! Its probably the one that took 45 mins to catch!! lol These little plastic nursery tanks are so collapsable that it fell apart when I just touched it. How can I make a lid out of panthose so the babies don't keep jumping out?? And is there a way to make these nursery tanks more secure? Thanks everyone.