105 could be putting a strain on your plants. Also the leaf curl looks like it could be over watering. You want your medium to dry out almost completely between waterings. You need to get more ventilation to your plants. Try a fan in the middle of the floor blowing straight up at your lights, and put another fan at the top of your closet blowing the hot air out. This will make a huge difference in temps and probably solve your problem. Otherwise you'll need to invest in a cool tube or sealed hood and some ducting, or use a smaller light. HID lighting requires ventilation or things will be much too hot, like in your situation.