From my experience a well established living soil is very forgiving with these natural fermentations but I try to keep balance. I never feed with only one Macro or Micro nutrient. I use oyster shell flour to make my soluble calcium solution. I use 2 to 3 tbsp of the dissolved calcium and 1 tbsp epsom salt per gallon of tea. However, in my experience, a balanced "tea"once a week keeps me in the sweet spot. I with labs, sst, comfrey or hemp extract @2 tbsp per gallon (I alternate), Fish hydrosylate 1-2 tbsp per gallon (depending on leaf color and growth stage, and I top dress with bokashi and BAS mix at least once every two weeks. I also try to foliar spray twice a week with the same calmag mix and Tea without the fish hydrosylate
@half strength.