How to Calibrate pH Meter [Grobo Grow Box]
In this video, we’ll show you just how easy it is to calibrate your pH meter in a Grobo. We recommend calibrating every grow to get the best results in this deep …
source
In this video, we’ll show you just how easy it is to calibrate your pH meter in a Grobo. We recommend calibrating every grow to get the best results in this deep …
source
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