Frog moss growing mold?

[Ksams821]

I recently got a red eyed tree frog, and I put Zilla frog moss in his enclosure as a substrate (the kind where you add water and it expands a lot). It's been in there about a week now, but I noticed that it has been getting this grayish/white stuff on it. At first I thought it might be extra calcium dust from the crickets but there's kind of a lot more than would just be from that, so I'm thinking it might be mold from all the humidity? The moss is pretty saturated with water, as I have been misting my frog a LOT during the day to keep the humidity level up. Has anyone else had this problem? Is there a better substrate I could use that will hold moisture but not grow mold? I just bought a bag of sphagnum moss which I was thinking of putting in tomorrow, buti wanted to get some other opinions. Would the sphagnum moss be good for my red eye? Am I misting him too much since the moss is so soggy?

I would appreciate any advice or opinions!

[DonLisk]

What is the tanks humidity level during the day when lights are running on the tank?

Is there a drainage layer below the top layer to allow for proper drainage and the moss to not sit saturated?

Molding in a normal process for the tank cycling, and should go away over time. Does your tank have enough accents to keep the frog off the bottom of the tank so that it doesn't have to step or move thru the mold?

Post a pic, it may help others reply with some helpful ideas.