SOIL Light green on top and brown spots

[Julian024]

My plant is light green on top and keeps getting brown spots. I think is mag deficiency but i gave it calmag and nothing. The lighter top could be from light intensity but im not sure please help. I honestly dont know what it could be. Besides that they are growing amazing. I just dont want to deal with issues later on into the flowering stage which is around the corner. they are autos. Auto purple skunk and monster mass. By critical mass. Thank you for the help. #MakeCannabisGreatAgain

[Canuck147]

So what's your ph?

[Julian024]

I try to keep it between 6.2 -6-5 and i do fluctuate at times to 6.8 or 6.0 as i read is good to take in all the other nutrients. Plants are healthy. Is just the top coloration and the spots on random leaves as you could see. I just dont want then to keep coming up while i flower.