plz help brown spots on leaves getting worse

38 days veg.foliar feeding with ff gro big to mak up lack of mag

How are you measuring the PH of your water and how are you keeping it at 6.6?

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Originally Posted by howsyourroof

38 days veg.foliar feeding with ff gro big to mak up lack of mag

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u need to flush and start over with mild solution,like 1/3rd then u should have no worry after a couple of days,if not the old at lease the new growth