So my zebra and tiger snails are often upside down all the time! As soon as I flip them over they're on their way moving again. Are they unable to flip themselves back over!? I have sand substrate with lava rocks, driftwood and it’s full of live plants. I never find my black racer upside down. This summer I’m going on a two week trip and will have someone feed , but I’m worried they will flip over and can’t get back over! I had no idea this was a thing with them. My mystery snails never have this happen . Maybe if I left them they’d flip over? Doesn’t seem like they can