Water of .1 EC is good. (50 ppm) as i said earlier, I used advanced nutrients ph perfect.
Part A is 4-0-0 (3.55% calcium, .9% magnesium)
Part B is 1-2-7
So I don't think your NPK ratio is too far off.?....
Before using AN my ph would always slowly go up (ph down was my best friend) generally...