Planted Tank Enthusiast
Join Date: Mar 2012
Location: College Station, TX
hard to tell from shell but either a pond or bladder snail, looks kinda like a bladder snail but not possitive. Probably came from some plants you put in there. Eggs being stuck to plant leaves or stems if not treated or quarantined develop and you get snails.
They wont hurt anything unless you just dont want snails.