J Jhaz Active Member Jan 15, 2011 #1 im in week 3 of flowering, been on tap water but just got an ro system today.. how much cal mag do i use? and how often? thanks guys only products im using is house and garden aqua flakes a&b
im in week 3 of flowering, been on tap water but just got an ro system today.. how much cal mag do i use? and how often? thanks guys only products im using is house and garden aqua flakes a&b