yeah, what soil is that? i sure dont want to buy it. heres my take...your finishing flower and leaves are turning yellow due to N def. they never really built a strong base so this is what you end up with. dont fret too much and you get what you get. if your less than 30 days add a little nitrogen and finish as normal. if your past 30 days just finish and accept it. my only other thoughts are...too much heat or there is too much nute build up. hard to tell with so little info though.