Respectfully, on second thought the problem could very well be a Nitrogen deficiency; the yellowing patterns are indeed characteristic of this. If pH was indeed the problem you would see other nutrients locked out as well, which is not the case. Also, FFOF tends to be very well balanced in terms of pH.

Quote Originally Posted by polishpollack
Why you'd think pH is a problem I don't understand
I originally thought this might be a pH issue because the soil, FFOF, typically contains enough nutrients to last a month or so. Since the clone was purchased on 12/2, I assumed the plant was less than a month old. Also FFOF contains peat, which when broken down acidifies the soil. Since Nitrogen gets locked out at lower pH's, I arrived at this conclusion.