I have a pair of RETF and WTF's. I have cleaned and potted plants for their enclosures with eco earth. I am feeding them out of glass bowls so there wont ever be food in their enclosure on the substrate. I want the plants potted so I can water individually and move them around. I washed the pots well too. I am wondering what substrate I can put around the pots in the enclosure. I dont want to just use paper towels. I have more of the eco earth, I have cypress mulch and I have sphagnum moss. Are any of these ok to use with my frogs as a substrate?Can I put the eco earth down then something over it?