berkman858
Well-Known Member
Cool, that explains the PH difference. Thanks.during flower (usually around wk 5 for me) plants stop using as much nitrogen(which has low ph) and begin using much more potassium(which has high ph). this causes ph to stabilize and then decline, in my experience. also, a plants nutrient needs generally peak out during weeks 4 through 6(depending on strain) then begin to taper back down.