I'm thinking about building a custom indoor/outdoor viv for my chameleon. I'm planning on getting 1 or two ficus trees in large pots, and placing them on some sort of rolling platform, with either hardware cloth or some type of mesh 'fencing'. But my real question is how do you go about cleaning this sort of viv? since it's a mini ecosystem, do you just let the feces fertilize the soil, or still do spot clean ups?