Until you get rid of those gnats my guess is you'll be battling pH issues. Just keep on it. Best wishes for fixing this quickly.Thanks for your input, I appreciate it.
Tap is a no-go. 550-750 PPM
Using PH down to try and keep the PH within reason.
Good point on the hand watering. I will hold on to that as a last ditch effort.
I have the pool shock and Microbe lift on order. I am hopeful that going to a sterile res will clear thing up for me.
Fortunately the plant doesn’t look bad yet, it’s just that the res looks horrible.