i can answer that question they dont,imagine the proper water needs of 1 adult chameleon for 1 year.they need alot of water be be healthy at least where i live specailly in the winter now if you just wanna keep it alive it will work ok. i use lots of water when it rains outside i try to keep it raining indoors all day if i got too. i really dont know how people keep chams in these cages.likje i said in the winter it gets so dry and constantly misting its so humid then the summer its hot and humid i quess it works though,you make it work so your cham will be strong n healthy she make you chase her cause shes so strong n fast you know you got a healthy cham.