:smoking:
@Ash-a-Ton ... yup, that's Ca defc. mate,... often, it hits hard along the veins and midrib, which helps distinguish it from some P defc. symptoms that look similar,...
...noting the deeper green color, might be you're heavy on N, so when you can, get some form of Ca-Mg that's low-to-no N! It's f'ing insidious at times, the "hidden" sources of N,.. True, the old formula of GO CaMg+ was all carbonate based, now it's 1-0-0, using MgNO3,.. this is plenty mild, so use it if you like,..
BUT... first, what kind of ppm's are you running? And how much Ca-Mg added? ....if you get high enough, the Ca-Mg can get restricted in uptake,... also, how's that pH? We need to determine if this is a simple lack-of type defc. or if it's pH related, or other uptake issues,...
Derek' made the suggestion to 'flush" if you can, but it sounds like a shit-show to do in that hybrid rig,... let's see what your plain water ppm and final pH adjusted nute solution is as well,.. if your not over the top, it won't be necessary,...
