No good pics, but a bit of an update. The male is back to calling quite regular, including as I type this!
He was always able to be found climbing in the craziest places. A couple weeks back he went missing. After 3-4 days of not seeing him I went on a mission. Tore apart the plants, wood, waterfalls and couldn't find him. Searched the water and nothing... I then moved the room AC unit and caught a glimpse of yellow. He had climbed over the top of the fake back wall, worked his way down to the bottom, then along the fake wall on the right of the tank. Finally wedging himself upside down and pinched in an opening of the egg crate! Some gentle prying and coaxing got him free but he had so little energy, ended up falling into the water and would have drown. I gently placed him onto the terrarium floor and hoped for a good result. Large white spots on his head and back, scrapes on the rear legs and a dent on his back from lying on the egg crate....
That was over two weeks ago. To my utter surprise there are no signs of fungal or bacteria infection in any of the abrasions. The white spot on his head has faded but is still obvious. Still a little thin but back to eating well and now back to regular calling. I'm hoping the little guy passed the bend and will make it. Goes to show how resilient this species is.