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The optimal time to dose is around two weeks before you intend to harvest
IWS and others
or 'mesh network'
The silver in Silver Bullet Roots extends the active lifespan of the peroxide in Silver Bullet Roots to around 5 weeks
Bluelab - pH Calibration Solution Size:pH 7.0 - 500ml The optimal time to doseBluelab pH Calibration Solution Keeping your pH meter calibrated is essential for taking accurate readings and keeping your nutrient solution within the correct pH range. Bluelab's pH Calibration Solution allows you to accurately calibrate your pH meter. Check out our complete water conditioning toolkits, which come with an EC meter, pH meter, pH up & down, pH buffer, chlorine neutraliser, jug and syringes click here to learn. How pH Calibration