Chances are that the leaves at the bottom are yellowing because they are not getting a lot of light. In two weeks you should stop using ferts alltogether so that 1. the soil gets cleaned and 2. they start using the nitrogen built into the leaves. Once it starts to use energy from the leaves they all start to yellow out. Yellowing on the leaves at this far into the plants' lives is no problem at all. Don't freak out about them. The plants are beautiful and I have a feeling the bud they give is going to be superb. You've done a great job. Not only have you done a great job, you did it all on your first grow. You should be proud. Goodluck.
Da1KrayzieThug Reviewed by Da1KrayzieThug on . 8 week old :D hi guys , kinda new here .and this is my 1st grow ..so far so good i think ,just thought i would post a pic to get some feedback . the 1 on the left is an issis cutting (have 2 ) and the 1 on the right is northern lights bigbud :D (only got 1 left)... currently living in a wardrobe in my bedroom with a 400w hps in there ..gets down to 60 over night an upto 80 while the lights are on thru the day ,but still they seem to b doing ok ( well look ok to me ) what ya think guys ,, they doing ok Rating: 5