Unknown deficiency please help

[STILLSMOKIN]

I went 1/2 strength stronger on mg and it's starting to pull through. May want to try getting some epsom salt and add in separate. That's what i did. So theres no confusion i take one full cup of epsom to two cup hot water mix and leave for 3 days then give them 10ml per gallon. Big one gets 15ml. Last grow held good at 10ml all the way through. Also i gave it everytime whether it was a feed or water.

 

[TBgrown]

I am not using coco specific nutrients but they are compatible with coco. Also I have been giving them cal mag at 4 mills a gallon and I’ve been keeping my ph Around 5.8. I have not tried epsome salt but I will give it a shot. One question though will this color break go away if the issue is fixed or will the one plant be permanently discolored?

 

[STILLSMOKIN]

Mine went away but also my lights were too close. I brought my cobs up to 40inches from canopy and turned off other lights.

 

[Waira]

color break is usually genetic, so it's not likely to go away, but in some cases they grow out of it,... I see neither Ca or Mg defc. here, so don't laod up on it unless needed, your nutes and Ca-Mg are enough,... read up on coco growing, you don't want cumulative nute salt build up to hit you hard later! 15-20 run-off each time, mild feeds, never water only, this can start to screw up coco's CEC buffering, then the defc.'s will become a shit-show,....

 

[TBgrown]

All the feedback is definitely appreciated, hopefully I can still pull a good harvest, so far none of the mephisto strains I’ve grown have disappointed. This is also my first time using the cmh lighting so I’m hoping for bigger yeilds then my previous 2 mars 300s. Have any of you guys tried cmh yet if so any info on hanging distance, bud density and yeilds would be awesome. I’ve heard That plants under cmh really frost up nicely.