Dont worry too much about the snails Eddie. I was as mad as Hell when I found I had them in my tank, but now I am used to them. I have found the best method is to squash them against the side of the tank and feed them to the fish - the lettuce technique didnt seem very effective.
Main thing is that they dont do any harm and the only problem is that they multiply like crazy, given the opportunity.
TROPICAL TANK-Elite Tank - 207litres
6 Harlequin Rasboras, 5 Emerald Eye Rasboras, 10 Cherry Barbs, 2 Bristlenose Plecs, 2 Panda Corys. 4 Dwarf Chain Loaches.
ViaAqua Tank AR620 97litres
1 red male betta, 1 BN