HYDRO Deficiency problem in flower, first run need help

[Kilkennyandgreen]

Leaves feel dry to the touch, upper most leaves are cupping and have gone shiney and a brown/green shade,
red hard brittle stems
Soup has been sitting around 980-1200ppm

over night temps are cool
any help would be appreciated

[gbauto]

Some more details on the grow setup will help. My RDWC system sometimes runs into toxicity issues when I mix strains during a grow. Some genetics can handle alot of nutes while other will be cooked at that ppm so COMPROMISE may be necessary.

[Sammy]

Not an expert by any means but the first thing I would do did you cut my newts and half maybe. See how they respond underfeeding probably better than overfeeding

[GanjaGed]

Read through this,

[Kilkennyandgreen]

Thanks a bunch mate!
Sorry i should of specified alot more..
it's a 4x4 set up with 6" inline and another venting inside behind my carbon filter,
set up in my garage, its pretty terribly insulated in there so im have my day cycle going at night..
inside temps get to about 15 lights off and about 25 with lights on got a 600w de hps lamp in there
single pot dwc

[Kilkennyandgreen]

Celcius that is

[Kilkennyandgreen]

Im pretty certain GanjaGed has pointed me in the right direction, thanks alot mate and thanks to the rest of you fellas and the input, means the world to me cheers 🖒

[Kilkennyandgreen]

Gbauto, sammy thanks alot gents,
Turning down the heat on my soup has definately done her well hope to see you all in the forums and hopefully follow along with a couple grows!
happy growing, peace.