ph adjusting solution

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i dont think so, but i can see bringing it up too high and then bringing down too low, then adding more up and so on could be harmful.
 
I prefer doing with natural ingredients. Like add a drop or two of lemon juice to your water then test the run off.
 
If your growing in soil, and use chemical pH adjusters, they are not good for the micro life. If your using chemical ferts anyway, I would not worry but if your doing organics and adding chem adjusters, then it is counterproductive.
 

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