Actually the intent is for it stay moist and pliable, that way any plants that are growing in it, the roots will help keep it in place. Id like to try to get some moss to grow on it if possible. I think in theory it would work out fine, but Im worried about any toxicity it might have for the frogs. Thats the main thing Im concerned about. I could order the two Bentonite clays that were recommended from my own research from Laguna, but If I could get some premixed clay material it would easier..not sure if cheaper, but it might be less hassle to work with.