Does pH down kill soil microbes
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If you were to add microbes to a feed and then pH yes, but not all of them. That’s why you always add microbes after pHing
If you are talking about microbes in soil that you are watering I wouldn’t be concerned.
Not totally sure but I’ve been taught to ph, then add microbes after
Although I’m new to growing marijuana, I wouldn’t use citric acid
U can get one for organic growing basically its baking soda and lemon juice
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It doesn’t hurt. It takes very very little to tank the pH
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Learning something new, thx!!