How is it going chooken? Did you manage to get your temps sorted? Poor little guy...have you seen him some out at all in the last few days?
I would go the fridge treatment as Kapo suggested in your other thread, it is much better for him and you have piece of mind whilst at work cause you know the temp is right!
All you do is change his water every day, I even have managed to get Miles to eat! (they eat less at lower temps, slows their metabolism) and plus that will give your tank a chance to sort itself out! Keep us posted....