Well, everything was going fine and then... Using Dutch Pro feeding to the recommended EC and PH 1.8-2.0 EC and 5.8-6.2PH
. Looks like CalMag deficiency but I'm not sure. First time using Dutch Pro and first time DWC although I am doing another tent with Coco and also using Dutch pro and having similar issues.
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Looks like symptoms of pH fluctuations. More info: https://www.mrgrowit.com/post/ph-fluctuations-in-cannabis-plants
Also I can’t see the temp of your res but DWC should be cool/cold water
DWC and coco are both soilless and just at a glance it seems as if you’re PH is a tad high for hydro. Just my first impression.