Yeah, what is it about us plant keepers that we all seem to have an over abundance of snails? I have a dwarf puffer that I keep moving from one tank to the next, and while he does a real number on the snails, they never seem to completely disappear. He's a very happy (and fat, LOL) dwarf puffer, though! We just bought some assassin snails from Rachel, and while they're very cool, I have yet to see an assassination, LOL.
As a matter of fact, I have an entire 20 long setup (with lights, Rena Filstar XP1, heater, ecocomplete substrate, and plants) that has an established snail colony (as well as a handful of red cherry shrimp) I'd be willing to sell. You could buy a pre-established snail colony!