For a few hours, my mystery snail has been frozen out of its shell. I first noticed it a bit ago, kind of upside-down, hanging out of its shell, as if it were floating from the glass, but not moving. I picked it up, pet it, smelled it, felt slime, and smelled no sign of death. In fact, while I was holding it barely underwater, it twitched its siphon. I'm going to describe what I'm seeing:
Foot diagonally hanging out of shell, as if just detached from glass, mouth positioned as if sucking on inside of the shell, antennae wrapped around eyes (that's been going on for a while with both snails).
I tried gently pushing it onto one of the rocks while it was open, but it did not stick like it normally would. I noticed a tiny chip on the opening of the shell and 2 small holes that I can't tell if they go all the way through. It doesn't shake around in the shell and it doesn't smell, it's still making slime and barely moving, so its not dead, but what's wrong?