ive had mine for 4 years now! hes just over 18", i have never seen him drink,(still put fresh water in every other day) and ive never sprayed him, heard its bad for the skin! not sure how true tho! they get there fluid from there food, best thing is to get them eating veg when there young,saves you ££££, he loves wax worn, he goes nuts even when he see's the yellow tub they come in (start head butting the glass trying to gey at them,hehe!)
i think i paid bout £250 for the set up and gizmo (lizzard) and after a 6-8 month i could take the tank back for a bigger one and he would take the price i paid for the small tank off the bigger one!