i have a suggestion regarding bleach. i used to work in a lab animal facility, and i had to work a lot with bleach for disinfection in the fish room. there were not just fish, there were also xenopus, turtles, and water snakes. we had to disinfect glass aquariums, nets, aquarium rocks, thermometers, heaters, even wood and porous rocks from the reef tank (i don't know anything about coccidia, though) everything that came into contact with the animals or their water with bleach.
we would soak the stuff in a bucket of bleach/water, then dump all the bleach water out and refill the bucket with hot water and a chemical produced for fishtanks to remove chlorine. we would soak the stuff in that for a while and then rinse individually everything with running hot water, and then left to dry.
if you were going to be bleaching everything on a very regular basis and are worried about traces of bleach and how it will affect your dragon, i would suggest getting some of that dechlorinator stuff. you can get it in the fish aisle of any pet store.
amanda