Growing Blue Dream 1st time

This week the tops continued to grow out and have started their second nodes. The lower leaves on both plants have mild chlorosis. I have determined that this is from the sun when I was finishing hardening them off we had a small heat wave. They are currently spending 8 hours a day in the direct sunlight and the other 10 hours under the grow lights. I am considering topping the side branches that can be seen in the photos. Nutrients remain the same.