+1 on the Leopard Ramshorn. I found one of these on a plant I got from the LFS, and thought they looked awesome so I kept it. Now I wish I hadn't because I have to pick them out of my tank weekly and smash the egg sacs everytime I see them which is every other day. These darn snails produce more rapidly then pond snails and they riddle my plants with holes if I don't keep there numbers down to bare minimums! If it were me, I'd get rid of it.