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.
1st week 12/12, current feed 2.1EC (of which about 1.0EC is calmag - 5ml/gal). PH is always between 5.8-6.1, tent temp 25-27c, res temp 19-21c. Lights: COB 200w at 100% 75cm from canopy. More details in diary. Been spotting these dying leaves. What kind of deficiency could it be?
Hi there , looks like root problems causing micronutrient deficiency . You probably want to clean your reservoir maybe even clip the problem roots if you can tell which ones it is . Or you add something like hydroguard to add beneficial bacteria to the reservoir and try and prevent the problem from happening again . Hope this helps ! 🚀
ive just finished a run of triple cheese. It is such a good smoke. I did find it did not like to be over fed at all though. If i was ever to heavy on the nutes she did not thank me. Good luck for the rest of your grow👍