I had two Grey Tree Frogs I caught from a local area, and I woke up this morning to find one in the substrate, and looking ill. He was limp and upon trying to inspect him, he went even more limp, while breathing very shallowly. He passed soon after I'm sad to say, as his mucus layer was peeling off, he was entirely unresponsive and he had stopped breathing. I had hoped it was some sort of hibernation, but its not. The remaining frog however, has been sitting in the pool, making minor spasms (for the initial period his legs where out but now he's sitting normal), and he didn't want to eat a cricket offered to him (the usual feeding method). I would let that slide but the last time he was fed was two days ago. I'm just concerned about the remaining frog's wellbeing, because my other frog was perfectly fine up until this morning .He also seems a little bloated after having left the pool, but at the same time his skin looks alittle wrinkley. I'm worried he won't make it to tomorrow at this rate .