do you still have the two in one cage? they need to be separated.
To prevent the buildup you can put a plant below where the water drops, or you can build a drainage system. you can look this all up with the search.
So you are using an exoterra? Oh brother not again, let me guess the people at the pet store said it was a good cage for chams cuz their picture is on the box. You cham is probably to hot in the tank.
http://raisingkittytheveiledchameleon.blogspot.com/
this should answer your questions, if you have anymore just ask but try to keep your threads to a minimum.
And welcome to the forum!
they should look like ankles, if not then you most likely have a female. and if you have a female make sure that you know what you are in store for. females take more care than males.
If you want to go with a cleaner look you could use the hood but the night bulbs arent necessary. But you can get a reptisun and a clamp light for less than that hood will cost you.
The bottom of the LLL cages are a piece of pvc which make it easy to clean and modify for a drainage system...