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What should my pH level be?

We recommend a pH level between 5.5 – 6.2 for hydro (except coco), between 5.8 – 6.2 for coco coir and between 6.2 – 6.7 for soil. Keep in mind that the pH scale is algorithmic-a reading of 6 is 10 times more alkaline than a reading of 5 – so make changes very slowly.

Hydro 101

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