Originally Posted by jpchin
i totally agree with kelly. my mystery snails would stay in the same place for a day or two. the best way to tell if a snail is dead is to pick it up and if it's dead the insides will come out of the shell since the muscle will no longer hold it in after death. that's the only way i know to tell. before i found out i'm sure i threw a few out that were just "sleeping"
Yeah, my friend did that too.
I have lost a few mystery snails, but in general they have been pretty hardy. They do need good water quality. Another thing to do, is make sure you buy one that looks healthy. A healthy mystery snail should barely be practically overflowing form its shell when it pulls itself in. If the foot is sunken in at all, it means the snail is unhealthy. The foot should be flush with the shell, or else out of it a bit, but never sunken in. Many places sell unhealthy ones.
Also, add a source of calcium to the water like a cuttle bone. Acclimate carefully. I suppose my juvy snails have had a higher success rate, so that is good advice too.
Also, mine have been known to sit inactive for even a couple of days. Mystery snails are famous for looking dead.