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.
purpleskunk777 Reviewed by purpleskunk777 on . Yellowing leaves...bit of help please? Hey all, I picked up some clones about a week ago (12/2) and they came with about 2 or 3 yellow leaves. This isnt a big deal to me, but some new growth is also turning yellow at the tips and the outter ridge of the leaf. Im guessing this is nute deficiency, so I started its feeding today. Just looking for some expert opinions as well. Another question involving nutes, FF feeding schedule says to give Big Bloom for the first week of veg, why is this? As I understood it was Big bloom for Rating: 5