I think thats meant for you stoney... he's getting confused between the two grows with the same probs...
I figured it out I think... lets assume my base water ph is 7.0... I had figured that adding the bizz nutes was dropping my ph level to lockout...
Mines faired better after I figured out that dolomite lime was ph neutral of 7.0 but I couldn't find any, I then found out that dolomite was basically just calcium and magnesium (which the plants were lacking anyways)
So I stuck some calcium dust and epsom salts into my nute mix and gave that to the plants.... (funnily enough I done all of this in theory because I didn't have a PH meter)
It completely helped.... alongside that I upped my nutes to almost DOUBLE what they were lol...
Today I got a PH meter and I checked on my theory just to have physical evidence on the theory....
my water ph is 7.4 when I added the bizz it drops to 5.1 ... 5.1 causes the cal/mag AND PHOS deficiencies.
*the PHOS side explains why neither of us had probs until the start of flower*
adding the calcium and mag to the mix upped my ph to 6.4 (practically optimum right) ... tomorrow is watering day so I'll be doing the test on a proper batch and I'll PH the run off too just to let ya know