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FFOF is very hot soil. It feeds for 3 months. I like to cut it with 50% coco or peat moss, large perlite. It increases yield and vigor.
I add 100 ppm cal/mg when I water and some molasses once in a while. (I prefer to make super soil vs using bottle...
If you're growing in soil don't ph the water. If using tap water bubble out the chlorine for a few hours.
Your plant is not absorbing nutrients because PH is not in the right range. Feeding it more will not correct the problem. Salt will just build up.
After watering your plant catch the run...