need help i have some very sick girls and dont know whats wrong PICS included

okay so first ill explain the details. so i have 8 girls in a continuous scrog grow one flowers while one vegis and vis versa. my strains are pineapple express and grandaddy purple. all the girls are in 5 gallon felt pots and in pro mix soil i use fox farm nutes gro big bog bloom and tiger bloom. also add a super thrive to the plants at every watering 5 drops per 5 gallon bucket. so i noticed a problem a week ago and did alot of research and figured i had a cal mag diff and then i though maybe its the PH as well so i flushed with PHed water at 6.5 and then watered and fed adding the cal mag and also keeping the ph at 6.5 but a week later the problem seems to be still there. i have never had a problem like this before and i have many successful scrog grows using the same strains and same nutes and soil. take a look at the pics and please help me out i dont wanna lose these girls. thanks everyone for the help. GDPPEPEPEPEGDP
hope these photos help i mean they really look bad.

Blanched leaf tips = early sign of nutrient overload. Nitrogen is the cause. Add to that what appears to be heat stress.

Bro looks like your having the same issue as me. I've been told its a cal/mag def, u need to flush for 5 days, as they look over fed,

Feel free to have a look at a few blogs on the subject peace

Yeah I was thinking of flushing again I know it's not hear stress my tents are 72 and 62 at the hottest and coolest. I'm gonna flush again with just 6.5 water and hope it helps.

I think folks often forget how many nutrients are already packed into their soil. It prolly is over feeding. But, also, It's strange that this is the first run you've encountered problems, considering that all your grows are under the same conditions; so seek out that one variable that is different than before that you may have overlooked.

I'd suggest getting your p,h to about 5.8 and then increase as time goes bye, allowing the plant time to get use to the build up.
Pim glad I could be of assistance

What hotrodharley said. I'd also ditch the superthrive.

Flsuh for 5 days? Drop PH to 5.8 in soil? What the hell?

I swear, some people who don't know what they're talking about should keep their grubby lil fingers off the keyboard and try just reading for a while.

Gee I hate it when threads have conflicting info but those first 3 pics look pretty pale to me and I don't see any clawed leaves. I don't have any experience with your nutes and you didn't say how strong you mix them but I think they need more. I jumped in because they look a lot like mine did last week; ph too high, nutes too low, cal mag deficiency/lockout. I think I'm on the road to recovery by going back to my old tried and true nutes (Floranova grow) and lowering the ph. I think the Pro Mix likes 5.8 ph.

Well I'm gonna flush for the rest of this week and keep the ph at about 6.3 and see. I'll keep everyone posted on the outcome.

nick88 said:

I swear, some people who don't know what they're talking about should keep their grubby lil fingers off the keyboard and try just reading for a while.

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Are our referring to my status, bro you need to check out my page and see my yield, my iws give me 6oz dry so shut your face you waste man, I beg you don't chat shit, I don't see your advice anywhere on this blog, as you can see several people agree with my advice, your a pagan, with nothing better to do but chat out your bum, goodbye

Overfeeding for sure, it's also probably causing some lockout issues. After you flush, give them a very mild foliar, make sure your foliar spray has some good nitrogen content.
This will help to stimulate uptake in the soil by getting some nutrients moving through the leaves and stems again.