That's great to hear!
I'm a bit confused though. Why were you doing daily
pwc's when you were dosing meds? Did you do that when you were using Melafix? If you did, that could be why it didn't work. With Melafix you do a
pwc before beginning treatment, then you don't do one until after the treatment is complete. This allows the daily treatment to slowly build up in the tank.
Regardless, he's showing improvement and that's all that matters!