Alien Gorilla

I continue to see yellow leaves and cannot figure out the root of it. I can't tell if its a nutrient deficiency or a PH issue, if the nutrients that I add do no suffice then I will go get some PH down, as my soil PH is slightly high at 7.0, but I would not believe that could be the cause of it, only time will tell. To end on a more positive note, even with some yellow leaves some of these plants are bursting with life, and starting the 3rd week with some monster leaves for such a young plant. *UPDATE* We are now currently near the end of the weeks and the plants are beginning to truly thrive with some nice stalks and an explosion of colas. The yellowing seemed to stop now that I give it a regular supply of nutrients, also trimmed off any excessively yellow leaves. I did some very light pruning as well to allow more light to the newer colas and may have accidentally topped to runt plant way too early haha whoops so lets just hope for the best for the little guy.