light stress ??? help n opinions welcome

[Cyclonite]

I would back the light off increase ventilation and change out your rez. Use the 3-2-1 GH plus some calmag at 5.8 PH. Iv aso learned even plants of the same strain can vary quite a bit as to the tolerances they have to light nutes ect.

Cyclonite Reviewed by Cyclonite on 11-16-2006. light stress ??? help n opinions welcome hello all , lil help cyclonite or others , lil background = in wtrfarms , room temp =73deg. , rh = 55% , ph = 6.0 , water in res n cells =65deg. , g/h 3 pt. nutes = ppm of 420-500 . 3 blueberry / 1 cotton candy x nycd . they just got their first taste of nutes n jumped like 4in. overnight . got like w/in 8-10in. of 1000w/ hps in cooltube . largest leaves on blueberry were affected the worst , tips not curled like nute burn , looks like light or heat stress i think ? cotton candy x Rating: 5

[xcrispi]

thanx 4 all input ppl.
much appreciated .
peace

[xcrispi]

hey cyclonite ,
nute chg , g/h 321 at 500 ppm , ph at 5.7 , lights an easy 16in. or more away now , all new growth is bright green now . cal/mag ? what is it= calcium / magnesium . what do i use ? brand , quanity etc ...
thanx

[CaliJay]

My plants had the same necrosis(burns/dead tissue) and some intervienal chlorosis as well. Cal Mag did the trick. I think Stinkyattic nailed this one.

-Jay