I lost a snail too, he started looking "not so well" then he died, Not sure why, but thats the way this game gets played. The ones I have that are healthy can turn themselves over with no problem, they might have to come almost all of the way out of their shell to do it, but they can.
Is this a fairly new tank? He might not have enough food...... Just a thought.
Monday is a lousy way to spend 1/7 of your life-Garfield the Cat
In a perfect world, we would have gills,,,,,and opposable toes.-- Me