I've noticed that baby snails don't stick around long in my tank with amano shrimp. I don't know if they eat them or out-compete them. Also, did you blanch the lettuce a bit before you put it in? My vegetable clips always have snails on them.
This DID get rid of the snails for me. I used to have a DP, so I'd get a few snails when I saw them at the lfs. I would slightly overfeed so they would be able to reproduce. Sadly she diedRipples said:Try feeding the fishes less (yes I know - they look at you, suck their tummies in and try to look starving!) and do more gravel/sand vacs to get anything up from there. This, combined with regular water changes should *control* the population (won't stop them I'm afraid).
mooman said:Skunk botias will eat snails as well. Feed less, frequent water changes, and good algea eaters to outcompete them should keep them under control. I like having a few snails. gives my tanks some depth. Every once in a while I crush the pond snails agianst the glass and watch my angel devour them.