You should keep the plants between 70 and 74 inside. The main reason is below 75 degrees you won't have bug problems. Anything above 75 and there is a risk of bugs and mites. At night you can go down to 64 or a little lower. Run the lights at night if you are in a winter or cold climate. That...
If its at the top of the plant,MOVE THE LIGHT.........They are definitely too close. I've been there and done it. It only takes a few inches. Don't make a big move.