cat;; wrote:recently I got 2 mystery snails from a friend and put them in separate quarantine tanks to make sure they're ok, and one was doing AMAZING, (he/she) has its foot out all the way and is eating and "scootin" around like a champ... but the other one hasn't moved yet and it was definitely alive when she gave it to me, but now it won't move. I'm afraid I have killed it and I have looked up a ton, but he's just in his shell and today when I checked him out some poop like stuff came out of his shell.. so it seems like he's alive, maybe just scared?
If you pick it up and the operculum hangs, it's probably dead. I actually had a Nassarius snail I though was alive in my tank, and when I flipped it over the shell was completely empty. I would assume it's still alive at this point, how long have you had them?
How did you acclimate it? In my experience, invertebrates are more sensitive to changing conditions, and floating them sometimes just isn't enough. I started using the drip method on all my invertebrates, it seems to work pretty well for them.