hello GC, this site had become my goto guide for awhile now so i thought id make an account. Excellent source of information here. Ok, heres my situation/condition. Light- 400 MH ,18/6 Temp- avg around 78, with 45-50% hum. medium- soil mix ventilation- several rotating fans blowing air around, ( i believe this to be my problem) area- 5x10 room with no windows or vents just a door that leads to another room with no outside access. I had 4 clones growing under my light for about 4-5 wks. I have no idea how mature they was when i received them if that matters. They looked beautiful, however yesterday i walked in and they all were drooping and had yellow and brown dead leaves. All of them. My door is normally left cracked open to help with heat and vent. but it was shut. Thats nothing I havnt done before, but the temp was up to 88. I dont think that would have cause them heat stress, Im thinking its my lack of fresh air. IDK, thurs before lights out they looked vibrant and healthy, friday evening comes and its like wth? On 5/19 i used fertalizer for first time, organic fish emulsion, 2-2-2.... Please help, ive come to love these girls and idk what they're trying to tell me!!!