Hey thanks. Also, I have 4 42w CFL's on 2 plants. There is one light 3 inches above each plant, and then another light higher above those (like the set up in the book, Buds For Less). Do you think that this is too much light/heat for plants that are 17 days old? I had some minor problems with heat before, and some of the first leaves got burned very badly. I fixed that problem, but some of the edges are turning down. Do you think I should only use 1 CFL for each plant that this stage and wait for the other 2?