I have only popped in and out on this grow. However, skimming back, looking at day 52 - I think you had a lockout.
The leaves you cut then definitely look cal/mag defo - but that could be lockout indused.
Have you tried a damn good flush of phd water - like 3 x volume of pots then start at 1/2 nutes?
If in doubt I would flush to remove any salts - that is the beauty in coco! Onced flushed start her back up under control?
I screwed up and was feeding 5.4 as I was getting complacent - saw the lockout, found the reason (I have real time reservoir ph monitor - so no excuse!) and flushed hard ;-) within 24 hrs all good
The leaves you cut then definitely look cal/mag defo - but that could be lockout indused.
Have you tried a damn good flush of phd water - like 3 x volume of pots then start at 1/2 nutes?
If in doubt I would flush to remove any salts - that is the beauty in coco! Onced flushed start her back up under control?
I screwed up and was feeding 5.4 as I was getting complacent - saw the lockout, found the reason (I have real time reservoir ph monitor - so no excuse!) and flushed hard ;-) within 24 hrs all good