Quote Originally Posted by scagster
Have you topped these already? The side branches are growing faster than the main stem. I'd cut off any dying, yellowed leaves, the plant doesn't need to be wasting energy keeping old growth alive, when it can be producing new growth with that same energy.
I was pretty sure that yellowing leaves is the plant sucking the nutes from that leaf. When the plants finished using up the nutes in a leaf, it dies(the leaf). Its natural for the plant to use stored nutes from leaves that no longer serve the "light gathering" job that it was berthed for(ie: being too far from the light).
If you pluck a leaf thats still living(even barely), your plucking stored nutrients right off the plant.
And the answer for that plant is LSTing. Make sure you water well before you start.