I had started dosing sodium nitrate and sodium phosphate before I started this thread. Nutrients were 0 when I was testing so I felt I needed to do something. I decided to follow that route since I had already started. I can keep N and P measurable using that method and corals are starting to look better, but not amazing, but better.After 23 days of dosing Plus NP the PO4 value is ever < 0,01(Tropic Marin Professional Lab).
The tonality of the test is small changed from yellow to celeste but the change is really very very little.
I go forward ...
My GHA is dying off also but I've been told that is not from dosing N and P but I'll take a positive anyway I can get it.