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.
Opie Yutts Reviewed by Opie Yutts on . My very first grow Hello I'm new here, and this is my very first post; as well as my very first grow. I've read a lot of the threads here, and I think I'm off to a pretty good start. I'm about two weeks into my grow; I have four plants right now in 3 gal pots. I'm using a 400 watt mh light for the vegetative stage, and will switch to a 400 hps for flowering. I have some pictures, and just wanted some feedback as to if everything looks o.k. or not. Rating: 5