I could not find any reason why there was a pH rise of a mixed nute solution prior to feeding.
And, in fact, my nutes lower the PH. I believe they're designed to bring it down to soil PH levels. I lower it further for my hydro.
The pH rose to between 5.7 and 5.8 (meter fluctuated) so at this point there seems to be some hope.
Much more inline with what I've seen.
I use the DynaGro line (2part) just because I'm lazy and they're cheap.
Awesome data. Great job!