Had to go pass some times in my family, pally, help my parents with a few things and give moral support for the recent Alzheimer’s diagnostic of my father… Since they are against weed, I abstain my self of being in a weed site, lol 
And you, how are you brother 
doing fine al,i’m glad to see you…and glad you can go help your father…
Good to see you are fine buddy, thanks man, they were in need to some house reparation and made them a little garden and un wrap their boat and made it ready for the making water
Glad to be back home I was initialy was suppose to be back around the 10th, but the weather was aweful and could not work on the boat until this week-end… @BIGE
Thx buddy, sorry for the late reply.
You right on that RH numbers, I will be able to control the RH soon enough 
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Its looking like light.burn&nutrient.burn&nitrogen.defiency
I am going to say magnesium problems. Your stems are also purple. Also with magnesium problems it can create that V on the leaf tip that you are seeing.
If yer using more coco than soil in the 75%, then the ph should be closer to a hydro Grow. Ph issues and heat cause lockouts, even if the tds is good the plant just isn’t eating it. This condition can make it look like everything under the sun so I agree with the bring down temps, decide on what the ph should be for your mix and go from there.
I dont think he’s using any coco. That’s apart of the form so his ph looks good. Maybe if anything a little on the high side. You would want to make it around 6.2 or so if it is coming out at 7.0 that means it’s around 7.5 or more
Good to know that, I was thinking to that perlite, to much in the mix will make the soil to be almost soilless and the pH need to be a little lower like you said @Aolelon