Red eyed tree frog substrate

["Red-eye"_Matt]

I was thinking of using a base layer of large pebbles, covered with a 2-3 inch layer of cypress mulch and then a 1-2 inches of sheet moss for my tank.

I am wondering if this will be fine and will I have to create a drainege system for it? Also I do not plan on using any live plants for the moment but will probably be changing over to them some time this summer.

Also does anyone no if those pre-made waterfalls are good at keeping up the humidity because my girlfriend really wants to put one in there.

Any input?

Thanks