The Fox Farm Trio, using the amount that the schedule recommends lowers the PH of a gallon about 1.25-1.5. I googled Fox Farm Trio and acid and this is a common thing, even on Roll It Up. Some people adjust the PH and others just let it go, but they might have more alkaline water. People seem to get good results with FF, they've been around for a while. Maybe it just didn't like the flush before flower. I'll skip it next time but I was following the FF schedule, which says to do so.
From another thread on this subject:
Like the title says, I was just curious if The Fox Farm nutrient line (grow big, big bloom, tiger bloom, beastie bloomz, cha-ching) needs to be PH adjusted before watering the soil?? The only reason I ask is because people say not to mess with the PH in organic grows... Although I have also been...
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