last night my one hermit crabs legs fell of and pincer! all he has left is 2 legs and a eating pincer. i dont know what to do except put him in a plastic cage(which i know is bad but thats all i have) warm water bottles around him, misted it extra well, and wrapped a warm damp towel around the cage and water bottels. am i doing it right or wrong? is he going to molt or die? help is needed!