First if you have a water basin which is a must you dont need no fogger, dont forget its much more confy for your lizard to sleep during the nigth with a low humity, do you like sleeping under rain? So does not your lizard, moist if need be in the morning and let it dry as the day goes by. The water basin needs to be heated either by the outside with a head pad or by inside with a aquarium heater, thouse made for turtles are good because they are very resilient. The water basin needs to be cleaned allmost EVERY day and this is very important. Be aware that chinese water dragons are in my experience one of the most rewarding species to keep but at the same time they can be tricky, allot are wild cauth and that means they are starving and full of parasites, if possible get a grown one from a rescue or from someone that cant take care of he´s anymore they are much more hardy then babys. If your going for a baby get a cb one or at least a very alert looking one. Australian water dragons are much hardier and they are allways cb so they are potentially a better choice. Chinese water dragons also need night time heat, a heat pad of good quality like a zoomed´s or ceramic heat bulb gives just that. A ceramic lamp needs a termostat and a ceramic socket to work safely.
Also I recomend that you forget the 55 gallon idea for life but it will become handy however, as it can provide a very good water basin in a larger enclosure. The ideal way to house adult water dragons is in a small wardrobe made enclosure, MUCH BETTER then glass tanks, low budget (you can get one cheap from a junk yard) and your lizard can use its climbing potential. This guys can get BIG allmost iguana size, Ive seen a few males allmost 1m long. If you can choose a male its better for you then a female.
