i use - exo terra calcimize water conditioner (just put a few drops into drinking water)
zoo med repti shedding aid (a spray that helps reptiles shed with more ease)
calcium and vitamin powders:
nutrobal nurtient and calcium supplement
vetark arkvits vitamin supplement
you can use any kind of water....i just like to make sure it has conditioner in it so they dont become ill. i always keep a small amount of powder in the viv in a small dish. then i just dust a tiny amount of calcium onto all their food.