Dude, you should be dropping the cfls down to a couple of inches above the canopy now.
Also don't stress about yellowing leaves, this is natural the plant is coming to the end of its life, think of what happens in autumn, leaves yellow off. Some close up pics would help.
Also don't stress about yellowing leaves, this is natural the plant is coming to the end of its life, think of what happens in autumn, leaves yellow off. Some close up pics would help.