Micronutrients can come as a supplement just by themselves,.. the fert's usually cover the bases on that, but not always,... Fe, Zn, Mn, Cu, B, Mo, Cl are the main ones, with Fe and Zn being far more common than the others,.. your line may not have a specific supplement of this, but look at the labels on all and see what's listed- besides the base nutes, which will (or should),... the PK 13/14 is you bloom booster
... Oh, I meant what pH do the nutrient solutions test out at- LOL! sorry ...are you adjusting the nute soln. pH at all? they may not need it, but since we're looking into pH, best we know such things,.. pH adjusters are just fine if needed, but typically, nute soln.'s are acidic already, and since your soil is testing a bit high in pH, some modest acidic inputs might be the ticket,...