Very First Grow

Starting out week 7 the Auto Ultimate is really getting thick, I dont have a lot to compare it to but her buds are so much thicker and harder than the White Monster's The White Monster and Auto Ultimate both showed some problems on some of their leaves, mainly brown spots and yellowing. I checked the run off EC and pH and both seem fine and within range, my led lights were getting a bit close and most of the yellowing is on the areas closest to the light, so for now I assume light burn, I raised the light as high as possible and turned it down juuuuuust a bit. I will keep monitoring the plants as they progress through this week