Best Substrate for WTF

[newrkv]

Hi, I am curious as to what is the best substrate for WTF's, without having that multilayer of rocks and sheeting. I am looking for the best basic substrate that will be fine on its own in the terrarium. I use coconut fiber substrate right now with patches of moss throughout the enclosure, but have read that the coconut fiber is still dangerous to the little guys. Is is safe to go with all moss?

[Mentat]

Sphagnum moss is an impaction hazard with most frogs. You could use damp unprinted paper towels or damp fleece or similar towels that would be changed daily. If using towels, can wash in your washer using hot water cycle. Another option that Gail discussed is using flat coco mats .

[newrkv]

I have decided to go with the naturalistic setup with coco substrate and moss, and have opted to feed them outside of habitat. I really like the natural look and am willing to do a little more work during feeding time to maintain this look. Two questions though:

1. Is the coco substrate necessary if I cover it completely with moss, or is that just duplicating needlessly?
2. If substrate is a requirement for the moss, what is the recommended cleaning timetable? Like how often I need to replace part or all of the substrate.

If the coco substrate isn't required, I was thinking about placing the paper towels at the bottom and covering it with the moss for easier cleaning when it comes time.