I would have said "get a clown loach
, It worked for me" but they grow about 6" - 12". I would suggest to try the lettuce idea then. Another way I noticed that works is to lower the temp but that might kill your fish as well. My clown loaches got rid of all my pond snails and the lower temps killed my red ramshorn snails and my mystery snails. I actually wanted the red ramshorn snails and the mystery snails, but what had happened was my heater broke and my temp fell to 40º - 50ºF. I didn't notice my temps until 3 months later when I realized all my lovely snails died.
Btw, I'm in need of some snails, so I'll take whatever you don't want. Even the pest pond snails, my clown loach loves to eat them.
I would prefer you where in Miami Florida because I'm completely broke atm and can't even afford to pay shipping. -_-
Cinder I would love to have your extra MTS but can't pay shipping atm unless your willing to ship for free.