TLO indoor grow. GGC & Critical Mass

Indoor Growing Growroom Diaries
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Ok, well here’s a question. Since I’m doing a TLO grow. What is the best way of “Lowering” my ph without hurting my microbes? Like I have root farm pH up & down but apparently their not good to use on this type of if grow. So I’m not sure the best way to adjust it is.

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