That seems like a lot of cal mag incunjuction with mammoth p.. Keep in mind that too much "P", locks out "Ca" and others.. Our natural instincts are usually to "add more" of whatever is showing as a def. But that gets tricky. Lock outs can happen easily. I hate the term calmag by the way, lmao! It can create a lot of confusion. Ca and Mg are completly different and should be used in different ratios. Most calmag products are like 2:1 ca to mg.. When it should be more like 3 or 4:1. Excess mg can lock out ca as well. If it's not a ph issue, I'd look at possible lock outs.