are you talkingthe big snails or the little nuisance snails that normally people are trying to get rid of? big snails = can buy at the lfs, ohter kind = often come on the live plants or you can ask your lfs for them (many will be more than happy to give them away for free, thats how i get them for my puffer) (but you really don't want these unless you have something that eats them, they will overtake the tank and cause you all sorts of problems)