check your ph of your coco...i notice that cal-mag does drop the ph and i will use 1ml/gal of Rhino skin(potassium silicate) as a ph up with cal-mag and my water is 7.0 to start with:thumbsup:

i highly reccomend getting some mychorizzea...i use it every 2 weeks and it will definately help your yield
stra8outtaWeed Reviewed by stra8outtaWeed on . Help! Somethings wrong =[ Well its Day 3 into flowering (27th day since it popped above the coco). I've been watering everyday with Canna Coco A and B nutes as per bottle with some CalMag+ @ 25% per bottle. Temperature stay around 78~80F under a 400W hps, which is 24" above the tops. One plant is especially bad and has yellowing leaves that are folding down. Leaf edges are getting tight and I got some tiny brown spots. Noticed this is spreading to my main really good growing plant too. Am I under/over nuting? Rating: 5