Haha no, that wasn't a typo, coco husk is the name of the type of substrate you should sue for tree frogs. These substrates are made from the husk of a coconut, hence the name. XD That's ok though, easy mistake for a first-timer to make.
Any temp between 75-80 during the day is ideal for White's so you're ok there, what's the humidity like? I know you're using a fogger but I don't have one myself so I'm not sure exactly how much moisture those can produce at any given time. Try to keep it below 80%, as anything higher could be harmful and breed bacteria.
And that's ok about all the info, I know I wanted to share as well when I brought Bruce Campbell home, he's my pride and joy I couldn't shut my mouth about him. XD
One thing that concerns me though is that you're sort of panicking about them eating. This really isn't necessary, as I said they are new frogs and might take time to adjust before eating. You shouldn't try to force them by moving them from their comfortable position to the ground to eat. The frogs will eat when they're ready, if otherwise the frog seems healthy you should leave him alone until he decides he's hungry. Forcing them to eat could cause undue stress. Also, make sure you feed them at night, these frogs are strictly nocturnal and feeding them during the day could mess up their natural sleep cycle, causing more stress.
I think if you just relax and try to leave them alone as much as possible you're frogs will do great. Remember, the slightest change in a frog could cause their health to drop dramatically. All frogs need time to acclimate, some longer than others. Just be patient and calm down and they'll be fine. If they don't go for food one night, just keep trying until it makes the decision to eat on it's own, that's the best thing to do.