Hello, welcome and congradulations. I took in several Gray Tree froglets several months ago, so I am also a new owner. Most of the froglets took some time to adjust to their new diggs so don't be alarmed. Since Barney, I love the name, is eating that's a very good sign, since it tooks several weeks to get some of mine to eat. Several also turned dark green and black, most likey due to stress, after I took them in and stayed that way for months, only turning light green and gray when they ate. I agree that in time your froggy will be bouncing and climbing, mostly at night. Mine are nocturnal, I believe so are the White's, so during the day they basically lounge around until lights out and then the party's on!LOL I find it easier to handle them during the day since they are a bit lazier during this time and will be more cooperative. I take mine out of the tank to eat in a seperate container and during this time, about once a month or so, clean the tank out. Best of luck and hope this additional info helps.