Just feeling like sharing my setup and gathering any advice I can. First let's start with my materials. Grow Space: 57Hx22Wx14D cabinet lined with mylar Lighting: 6x26w CFL bulbs 3@6500K 3@2700K Ventilation: 1x50CFM computer fan (exhaust) System: DWC 5Gallon tub, 50gallon air pump w/2 5in. airstones Nutrients: GH micro and Bloom (lucas formula) These plants are 4 weeks old. I kept them at half strength nutrients until today. They are approximately 2.5 inches tall and slightly burned due to one of my cfls falling on them while I was at work. I plan to let them get to about 6 inches before I start to flower them, and switch to 6-8 of the 42w 2700k CFLS. How much of a problem with space do you think I'm going to have? Perhaps find the best way to make them grow as vertical as possible without getting ridiculous inter-node length? I have the cfls at approximately 1.5-2 inches. Also the temps with the lights on is generally 100degrees, with roughly 30%RH.