Is calmag supplements needed when growing in biobizz light mix? If so, when would you start adding it in? I have some Advanced Nutrients Sensi Cal-Mag Xtra lying around.
Hey buddy I always put my water on like this.
Osmosis water mixed with normal water (24 hours stale that the chlorine evaporates) to 0.2 EC. Add Cal / Mag to 0.4 Ec Ph with Organic Ph - to 6.0 .
Have a nice grow :-)