This is my first try at dart frogs. The temputure is staying about 70 on the bottom of the tank and about 80 at the top. The humidity is between 75 to 85. How long should the tank sit before I add frogs? I also have reverse osmosis system for my reef tanks, should I use ro water for misting and there drinking water or tap water? If ro water any additives to it? I also have a little fuzzy mold where the driftwood meets the coco bedding, I've read this will go away but should I wait for it to go away before adding frogs?