These Bruce Banners have been very healthy until now. They are 7 weeks old and have been grown in 3 gallon pots of Happy Frog atop FFOF. I just started feeding them Fox Farms nutes in accordance with the feeding schedule. Water has been consistently at 6.2-6.5. These are now under HPS lighting after being under LED for the first 4 weeks. I saw early signs of Calcium deficiency and have started the CalMag just yesterday. Any ideas how to get these girls back healthy? Sorry for lousy picture quality.
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Do you happen to know the PPM of the runoff? If it is calcium deficiency, the CalMag should definitely help. I ran FoxFarm nutrients for 6 years and some phenos definitely wanted the CalMag on top of the base nutrients. More info on calcium deficiency: https://www.mrgrowit.com/post/calcium-deficiency-in-cannabis-plants
If it is calcium deficiency then you need to raise the PH of the water to allow the plant to be able to get to it in line with the bell curve
Another.....
Hope this helps a bit
The picture is too blurry so I can't see what's wrong.