Just got a couple of tree frogs 4 days ago and they've hardly moved since we got them. The one we are most worried about is a lot darker...we tried feeding it a cricket with tongs to make sure it had eaten something, but when he did actually manage to eat it, it was more a case of dropping it into his mouth - he didn't move for it at all. He's only eaten this one cricket in 4 days. Neither of them have hunted for their food - we've hand fed the other one about 3 crickets so far just so we know he's eaten, but we don't want to make that a habit.
Obviously we know they are nocturnal, but they're not moving during the night either - they're in exactly the same place in the morning.
Humidity is always over 70, temperature is 70. We've got a heat mat on the back, and a pygmy bulb in during the day for a bit of extra warmth as the temperature was going under 70 degrees.

Our frogs are next to the TV...don't know whether this would affect them??

Hopefully they're just settling in, but should we be worried? Cheers