I suggest you do a search of the forums for the answer to this topic. It has been discussed many times before. Waterfalls are generally held in contempt by a lot of keepers on this forum (and mostly with good reason).

Feel free to keep asking questions here, but you may find it quite helpful to first read all of the articles at Chameleons! Online and at The Chameleon's Dish.
And then if you need further info, do a thorough search of the forums here. There is a ton of information and useful answers already on here.
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