he was in my tank for about 2 and a half days. and acclimated him for about 30 to 40 minutes so i doubt it was that. and he had a meaty inside so i know it wasnt the shell. i thought he might be molting so i left him in my tank for about 50 mins to see if he would move he didnt even twitch for about the 20 mins i was watching him. so i also doubt he was molting. it is just so wierd though because he was fine that night. also last night i had a blue legged hermit ripped in half(i only found half of him this morning). but i dont think this really has any thing to do with it. any more ideas?