Leaves kind of down , turning light green

H=Answer if you grow hydro or aero
C=Answer if you grow coco
S=Answer if you grow traditional soil
L=Answer if you grow soilless other than coco (Promix, Hyponex, SunshineMix)
R=Answer if you grow in RockWool
T=Answer if you grow in HydroTon
D=Answer if you run any type of automatic drip system, including into soil or soilless

= SOIL

E-indoor = INDOOR

CSL-= REGULAR SOIL
HCL-Hydro/aero/soilless system type
SCL-Anything you have added to the soil = Already mixed
SCLR-Soil or slab runoff = 7 and more than 1200 ppm
E-Water source = Tap Water 400 ppm
E-Source water pH = 7.0
HRT-Source water EC (if hydro)
E-Age of plant = 3 weeks into Flowering
E-Type of fertilizer Flora Nova Grow / Bloom
E-Rate of application (if hydro, this is your PPM = 800 - 1000)
E-Lighting source and distance from plant 3 1000 w HPS 24 inches
E-Air temperature (= 22 celsius day , 20 celsius night)
HD-Reservoir temperature =from the tap ?
E-Air % Relative humidity
E-Lighting schedule = 12/12
E-Type of ventilation your room has AC Unit
TR-Did you pre-soak your media in pH = NO



Now that sad , I 've noticed that the leaves started to get down a bit and some discoloration has beginned to show like Nitrogen defficency. (compared to my book )

I have also co2 on a lot so just making sure you have the complete picture.

I have 48 plants under 3 1000 W on soil. I have the runoof plates on all the time ( don't know if this is good ? )

I will post some pics later but for now , it looks like toxic buildup probably , locking out Some nutrients.

Thanks

Not sure what you mean by runoff plates, but a couple things struck me.
Runoff = 7.0 is on the high side. For soil, you want to get that down to 6.4-6.8. For soilless, like promix, do 6.2-6.6.
Are you letting the soil get a little dry between waterings?
If you suspect salting, a flush will fix that, plus you can adjust the pH of the soil at the same time by running water at pH 6.7 through for your flush. Then feed immediately with a 1/2 strength complete fertilizer, and return to your original feeding schedule after the soil has had a bit of time to dry out from the flush.

Run of plates is the plate under the pot that doesn't allow water wet the floor.Runnof water usually sits there until it dries.

To lower my PH in the soil , should i just use water with a lower PH than the runnof ?

I usually grow hydro , so I am a bit new in soil. This is how I would fix it in hydro.

Could too much CO 2 get plants with leaves down ?

I will put on the pictures by tomorrow ,

thanks

HighAllTheTime :thumbsup: