Ok I have 1 aro, 1 motoro ray, 1 parron shark, 1 lima, and a few plecos. My problem is that I have the little bitty snails that you can not get rid of. Before I would just empty the tank out and change the substrate and be done with it. But that was when I had a ten gallon! I am really scared of using chemicals cause of the ray, is there any way I can get rid of these things without harming the ray? Also I have a few albino snails that are decent size that I don't want to kill, I can put them in a different tank if I need to. Any help appreciated!

