Watering with nutrient solution and pH issue

Grow Cycle
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I have a four week old Amnesia Haze plant in FFOF soil. Using a recommendation by an experienced grower I mixed a reduced FF nutrient solution to 6.5 pH water to begin slowly adding nutrients to soil. The pH dropped to 5.7 after adding nutrients. I have ordered General Hydroponics Up and Down to correct the pH balance. I have read mixed information online for adding the up and down so I’ve return to this forum for another “experienced” clarification and recommendation. Do I add the GHU&D to the water after adding the nutrients to the water in order to achieve a proper balance the pH? This would seem more reasonable to me, however, I also read where adding up or down solution could mess up the nutrients…just want to be sure. Thanks

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Adding pH up or down will change your TDS numbers slightly, but trying to pH before mixing nutes would be total guess work. Your nutes will change the pH again.

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Thanks for the information. “Nuts!” Don’t want to mess this up. May try to find a harder water with an already higher pH and see how that turns out.

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@dcdkk437 like @AloysiusDevadanderAbercrombie said. I add Ph up/down after mixing my nutes.

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So this is what I did. I am on well water with “softener” that brings the pH to 6.5. I ran out to tramlaW and picked up a gallon of “Great Value” Spring Water; pH read at 7.9. I mixed the nutrient solution (about 30% of FF’s recommendation as suggested by the other experienced grower) and pH lowered to 6.7! Yaaay Team! LOL! (Now if only my PPM meter would come in!) Thanks for the feed back.

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Most nutes seem to be acidic. Full strength Jacks in distilled wants the pH up for sure.

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Yeah, with RO it comes out to around 4.5. But with my tap water it nails it at 6.53.

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