Hmmm, Ira seems to have some dislike for snails, methinks
On the contrary, I gave up worrying about snails in my tanks, except for for the Malaysian trumpet snails. The ramshorns I find are good for eating algae and cyano. If I think there are too many in the tank I put a algae wafer in an upright glass in the evening and take it out complete with snails before the lights come on.
Some pics here: viewtopic.php?f=17&t=51028