Sativa1970
Well-Known Member
Are you letting the water rest after adding cal/mag and before adding nutes? Including the cal mag bottles with a different label like in bud candy. RO water with epsom salt would have no calcium, just mag. Dark green leaves indicate high levels of nitrogen. Voodoo unlocks the organic P in the soil. If N or P are high it can lock cal and mag into the soil away from the roots. causing brown spots. High mag locks out P and cal. Vicious cycle.