thanks guys it really helps to know that my problem isnt too bad. the centrifugal fan i have just cant pull the heat out of the cab fast enough for the 400w mh. I'm going to move all these plants outside in about a week so luckily I don't have to get a bigger fan. I'm glad I dont have N def, thanks again
altec3 Reviewed by altec3 on . Heat Stress Probs? Hey guys I've browsed the growfaqs and have come to the conclusion that the plants are suffering from heat stress. The last few days have been really hot and the grow box struggles to stay below 95 during the heat of the day. I moved the lamp up a good foot but it seems as if they are still getting those burns. I really am just wanting to make sure that it is heat stress that they are suffering from. They also have a slight nitrogen deficiency I believe, shown in the last picture. If anyone Rating: 5