So, I've done my research before getting these frogs for my kiddo, but research doesn't replace experience unfortunately.

I bought three dumpy tree frogs from a friend, with their entire set up. One is blue, two are green, they look like they're 2-3 inches long.

My question is this: the blue one has been sitting on the inside of their fake-log-hideaway and has turned brown. I've read this can indicate illness, stress, or could be because s/he's hiding in something dark. The trouble is, I have no idea which is the problem.

The temp is about 78, the humidity at 70%, I've given them clean water twice now (they laid in it overnight)...I'm not sure what I can do to alleviate stress if that's the problem. I'm hoping it's just from the move, and s/he'll turn back to the pretty blue color soon :/

Any help is appreciated. Thanks.