Please help

[Hayward27]

Hi iam growing in a 2×4 tent using a 600watt led they were growing great until this issue pop up

 

[WeirdWiredWolf]

What type of fertilizer/soil?

 

[Mr.furley]

Can you take a picture of the whole plant in nature light
Can you give some more details, little pot size, watering habits, light distance?
BIGGEST QUESTION what's your Ph?

 

[Colombo]

Hello Hayward27, I too grow in a 2x4x5 Grow Room with 2 300 w led's and had the same issue start when I added the second light LED's to 600 that also increased the temp. The picture on the right looks to have the same light burn starting(brown spots on right side) the yellow is indicating water. I adjusted the lights, water and lowered the temp to 65-72 Problem was solved. Just a side note, be ware of your photo background. Check your soil moisture with a meter, its a life saver!!

 

[normanthyra]

It looks like a magnesium deficiency in the plant.
Describe how you grow, what you feed, what pH level and how long ago this leaf color change appeared?