Uh oh. I should have been more observant of the snails. I guess I assumed they were timid compared to the hermits. Acclimated for like an hour with water from whatever tank they were going into while I dipped and moved corals and rinsed containers. I hope they are not all dead since they are at the school and I am not until Mon. Hermits and clam seem fine. My two emerald crabs were super cool and active when I left!