Super Lemon Haze - First Grow!

This week I swapped out the little AeroGrow light to the Mars II 1600W, and because I don't have AC, the temps were creeping up to the high 90s, so I got some duct work to run the exhaust out to the window instead of just dumping into the room. It helped a bit, got down to hovering in the mid 80s, I'm currently on a 24 hour schedule, but with the heat this light pumps out, I'm going to switch to a 18/6 with the "night" set around noon to try and keep the temperature reasonable. I scaled up the feeding from 50% of the scheduled amount, and gave them a full dose, but I started getting what looks like nute burn spots on some leaf tips, so I did a plain water flush. The leaves got a bit droopy/curled down, probably from the overwatering. And then day 14, the serrated leaf tips started to curl up and taco a bit, which I'm assuming is heat stress, so I raised my light about a foot, and aimed my mini fan over the plants to eliminate any hot spots.