co2 burn?

[exer]

hi folks

Is this maybe a co2 burn?

I know is not nute burn for shure.My nute ppm is veary low.
The thing is, that this is my first run with sealed room with co2 add on 1500ppm.
All the plants look like this and the yield will be bad.I have better results with this strain in non sealed room.

 

[xcrispi]

What ya feeding em , ppm ph etc..

Hydro / soil , soiless ?

Crispi

 

[Natagonnaworrie]

wait, what the hell is CO2 burn??

whatever it is, if our meter is right and you are ar 1500 ppm CO2 its not CO2 'burn'

 

[exer]

i feed them with Floranova bloom on 800 ppm.
I feed this strain all the time with this ppm and it was no problems

 

[exer]

i think i find a problem.I use air pumps in reservoirs tanks.So the air pumps pull the co2 from room to a neutrient solution.
The co2 would dissolve in the water and produce carbonic acid.And this will burn plants.

 

[superpedro]

Looks to me like they want some mg.