Can anyone point me to a image of MJ plants getting bad air? I have a friend who is having problems so I wanna check that out before I go over. Unfortunately he has no computer there, and he doesn't want me taking any pics...he was even scared to ask me LOL. He sounds like he is describing plants with upwards curled leaves, waxy unhealthy growth, leaves are scaly, it's not pH and it's not salts, also his temps are great. He is using a 400watt mh/hps he just hit the lights for flower, he is in a basement but has plenty of fans going all I can think is air. He uses GH nutes also, and is doing a rockwool drip. Even just a site that shows images of all the problems, I know most deficiencies and lockout type deals but it never hurts to look.