DWC Grow #2 - Triple Cheese

The calcium deficiency which started last week made me bump Calimagic to 5ml/gal. It seems to have stopped progressing now. Next time, I'll make sure to start earlier to prevent this. Let's see, I'm not absolutely confident that this is exclusively a calcium def or something else. I've been reading other COB led growers comments and it seems that these kind of leds do require more calcium and magnesium than with other kinds of lights - maybe there is an issue with the spectrum of such lights. Since this is only my 2nd grow and I've never had any other lights, it's been difficult to know this for sure. Let's see what happens next, but I hope the extra calmag will be enough to sort this issue.