snails are not a nuisance if you maintain your tank properly and do not overfeed in fact they help by eating bits of left over food and algae
i have snails from plants in my big tank (Think they may be bladder snails) that came on plants i dont have a problem with them at all i just wondered about the bleach bath

you will only get a population boom if you overfeed your tank
for example i have a 60 liter tank set up which i purposly over feed for my guppy fry and there are literally hundreds of snails in there eating up all the left over food which i dont mind it keeps my water clean. im going to get some shrimp to do the job instead of the snails so the snail population will start to die off
ash
edit: i have also purposly put snails in my tank big tank (2 apple snails) and since i dont over feed they dont even breed