I bought this snail from the LFS who said it was a zebra snail and that it was okay for a planted tank. I'm paranoid about snails and want to be sure it's okay for my plants, but couldn't find much online. Also, will the deterioration of it's shell (bought that way unfortunately) heal or does it just stay that way? Hope the pic is clear enough (light brown and black striped, round and fat little guy). thanks! 

