I just discovered about 5 minutes ago that one of my mystery snails laid eggs. I did a water change yesterday and left the water line about an inch or so from the top. It obviously didn't take one of the snails long to take advantage of that! I have no idea which one laid them, and I have no idea which ones are male and female. I'm going to have to do some research on this. Here's the clutch. It kinda grosses me out.