looks like nutrient issues to me.
weedman419+1 Reviewed by weedman419+1 on . HELP!!! YELLOW LEAVES AND SPOTS!!!! HI MY 7WEEK OLD PLANT HAS RECENTLY DEVELOPED YELLOWSPOTS ON ITS LEAVES AT FIRST I THOUGHT IT MAY BE THE LIGHT BEING TOO CLOSE AND SO MOVED THEM BACK A COUPLE OF INCHES BUT SPOTS ALSO DEVELOPED ON THE LOWER LEAVES TOO (SEE PICS) SO I STARTED TO THINK IT WASNT THE LIGHTS AFTER ALL, SOME OF THE BOTTOM LEAVES HAVE BEAGAN TUENING YELLOW AND DYING, IVE READ THIS MAY BE A NITROGEN DEFICIENCY? IF SO HOW CAN I CURE IT QUICKLY AND CHEAPLY?, MY SOIL PH IS 7 AND I USE BIO BIZZ NUTES ONCE A WEEK OR LESS, Rating: 5