Which calmag brand are you using? I can tell you if you link me to it.
I'm thinking of increasing bloom nutes as K helps to decrease availability / lock out N. Maybe that will help me lower my N. I'm going to try add some bloom booster and increase ph a bit.
Bloom City’s Cal-Mag formulation contains calcium, magnesium, and a wide array of micro-nutrients. Using 100% organic fulvic acid to naturally chelate minerals results in compounds that plants absorb easily and quickly. Cal-Mag improves stalk and leaf growth and prevents common deficiencies...