Ive just fitted a ro sytem can anyone tell me if i have to use cal mag in the ro water in soil grows or will there be enough in the nutes and soil(canna nutes) i know its a must in coco and hydro .dont want to put it in and od plants with mag and cal.thanks.the postman
postmandave Reviewed by postmandave on . Cal mag + Ive just fitted a ro sytem can anyone tell me if i have to use cal mag in the ro water in soil grows or will there be enough in the nutes and soil(canna nutes) i know its a must in coco and hydro .dont want to put it in and od plants with mag and cal.thanks.the postman Rating: 5