Ok so its my second try at growing indoor marijuana, this time im growing 5 plants, I made a container to keep light from escaping and to keep my grow room small. Its been 3-4 weeks and im wondering if i can start my budding right now? I would wait a a little longer but if i do i'm worried my plants are going to get to big for the grow room. Right now my light cycle is 18/6, Im using 2 5000-5500k cfl bulbs (1 Warm- 1 Warm White) I topped 3 of my plants and 2 new main stems grew
. my other 2 is still growing straight, my bottom leaves keep turning brown. I clipped all the plants bottoms leave once, the only nutrient I used was 15-30-15 and that was for the 2 and 3 week. Can someone please tell me the next steps im still a first time grower 

