We've had our whites dumpy tree frog for about 9 months, he did really well for about 6 months... alert and jumpy, soaked in water at night, aggressive eater, and he grew quite quickly at first. Over the last several months he has not been behaving normally and I am worried he is very sick now.
Here are his symptoms: he has completely stopped growing even though he is still quite small; he doesn't eat much at all, this has gradually gotten worse, now we give him 10 medium crickets from the petstore and it takes him about a week to eat them all, and a few of the crickets have died by then so he doesn't really eat all the crickets we give him; he is always on the ground now and he doesn't really jump, just sort of walks but lately he has been staying in one place for a few days at a time; he barely reacts if we reach in his tank and touch or nudge him but he does walk around until you leave him alone; he also never goes in his water pool anymore, it is quite humid he doesn't look dehydrated, but he used to take a swim nearly every night. He usually goes after a cricket or two right when we feed him, but tonight he really showed no interest even with crickets resting on him. He is bright green still, even when he acted normal he rarely changed color. Aside from being small and maybe a little skinny he looks fine, no injuries or anything. There have never been any major changed to his habitat, we just moved from Colorado to Oregon but he seemed to be getting sick before we moved.

Any ideas what is wrong with him or what I can do to help him?