The tips of your leaves have a bit of nute burn. Not a lot yet but if you get more you might want to back off on what you are feeding. Just the very tips is what some growers call the prefect burn. I have only done a few auto grows (4) 1st one 15 years ago. last one a year ago. They have gotten much better I still prefer photos that you can clone, scrog, save the unicorns, and revegetate in a pinch.