I would recommend a 18x18x24 exo-terra instead, because a 2 yr old WTF is fairly large. I agree with Paul, though, he needs more food. I would recommend feeding him at least four, idealy 6-7 crickets every other night, and also purchase a multi-vitamin supplemental powder as well, Repashy is good, but Rep-cal can also do. I also know that Whites and other tree frogs love fake vines, which you can suction around the top edge, and increase the number of things he can climb on.