5 weeks into flower and now this...

I am 5 weeks into flowering and now the girls are NOT drinking as much water, the leaves have a yellowing spotting color and the tops leaves are curling up along the side edges like there is some kind of burn.
Also a lot of the leaves have turned super purple and almost dry and brittle.
What i did, was i flushed with water only for 5 days. (flood and drain)(ph 5.9-6.0) and recalibrated my tri-meter. Still the leaves have not corrected themselves. I am afraid that this will affect my harvest.
Please advise!
Mucho Thanks.

See the curls on the top leaves .
What do you guys think that is associated with?

I don't know because in the background I see some that are curled under too. What kind of nutes were you running?

You shouldn't be starving them now though. Even if you were burning them they still need the proper amount of food now and all these last 5 days.

Just for the record only new growth will come out right after you screw them up like this. You can wait until they're dead by not feeding them but that won't let the old leaves go back to normal.

OregonMeds said:

I don't know because in the background I see some that are curled under too. What kind of nutes were you running?

You shouldn't be starving them now though. Even if you were burning them they still need the proper amount of food now and all these last 5 days.

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The ones that are curled under are more towards the bottom.

As far as nutes go, I am using GH.
During Weeks 3-4 i bumped up the ppm to 1300 .
I was going to flush them one more time and then going half the food i usually feed until its time to flush for 2 weeks.
Good or bad idea ?

Because my system is the flood and drain, all of my waste goes back in the 40gal res. Really jacks up the ppm high. Everyday i ph down . I was thinking about having another res just for waste to be pumped out so the food i am feeding is always new.
ideas ?

nute burned like a sum-ma-bitch
the first pic looks like heat stress but its not.

U need to cut back on the food, unless they are seeded.
if they arent u should be feeding them 1/4 strength nutes from now till a week b4 harvest

I say nute burn.. Flush them bitches..

Spittn4cash said:

if they arent u should be feeding them 1/4 strength nutes from now till a week b4 harvest

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Great advice. I was deciding to use 1/2 strength until a week b4 HV.

plants drink more or less at difrnt times of growth

if your ppm is riseing every day its drinking more water and ppm is too high

if its going down its to low and the plant is useing more nutes

Flush with distilled or RO water for three days....then go back on 1/2 strength for a week. This should fix your problem as I see it.