Snail Ident please.

Looks like a Pond Snail to me as well.. though if it's quite big, it could be Lymnaea stagnalis, which I don't think I've actually heard of anyone in the States keeping.
 
Well it is nickel size now and last week it was less than a dime. Only one of them in the tank. The shell is very slippery when you pick it up and it doesn't go back in its shell when you pick it up. It loves to clean green spot algae off the glass. I will wait to see if it gets much bigger or not. Its kinda fun to watch...very fast moving.
 
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