<span class="link_user">@Sand0rV</span>, yeah it's hard to over do it with cal mag (unless you go crazy) ... another thing you can do is make a calmag foliar spray if you're nervous about EC, mix something like 3-5ml/L then spray it on the leafs, leafs uptake at 85% efficiency versus 15% for the roots... you do the math ! :rocket:
