Well it is an intresting idea, but i dont know if it would necissarly work. first off, the whites (or any frog) need a lot of humidiy, and that wouldnt be possible in a screen enclosure with just one tree in the middle, you would need more live/fake plants along the sides to keep moisture in. secondly, whites are fat little guys, so they arent very gracefull, and they dont seem to know their own weight, they could have a nasty fall from a week branch if they move out too far to get food or something. also you would need to provide them with a large but very shallow water dish, so they could soak up water at night. also, i think the whites would have a hard time hunting because the drickets would head to the smaller branches and hide in the leaves. so basicly, if you can meet all the requirements of a whites then yes, i would go ahead with it, but be carefull, and get the enclosure well established humidity levels before adding frogs. personally i would sugest going with a reptile instead of a frog, or maybe a small species of frog like a green tree frog.
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0.1.0. Leo
1.1.0. WTF
0.1.0. Irish Setter
2.2.0. Holland Lop Bunnies
1.1.0. House Cats
Too Many Fish!