I'm sorry to post here again, I'm definitely having some problems with the gardening side of things. I wish I didn't have to but I can't narrow it down. And one solution asked what ppm was in solution... And well, thats impossible right now. It doesn't appear to be same issue as yellowing but there is curling. Several of the leaves are curling below. This seems to be top/middle and perhaps lower limbs. It does not seem to be new or old growth but equal between two. Some of the ends are also blue/purple. I've checked for mites or other damage caused by insects, there are no burns, etc.. I've checked all undersides of effected leaves and around stems, flowering sites. The only other growth is white pre-flowering (I beleive) starting at ground level upward and its almost 3/4 of the way to the top of plant. I \\ THINK \\ it could be phosphorus or phosphate deficiency according to links posted, and online guides. I beleive its not a lockout, roots issue or heat/watering... There is some blue/purple "blotches" on the outside edges of old leaves (spreading outward), some tips of leaves and now some newer ones. I've found two or 3 with minor discoloration ontop and one halfway down that is kind of bad. The top leaves are fairly new. The newest are clean but are SMALL (2mm) so I don't know if they'll change color or be effected. The temperature and r/h has stayed relatively same. Although she dropped below 70F once during night cycle and over 80F another night. The discoloration was there before hand. These are not all the topmost leaves either but for the record the plant has been lowered to keep 3" away from lamps. 4 days ago I watered with well water, ph'd to 6.0. The roots themselves do not appear rootbound but she does need a transplant soon. Here is my best example of my girl in her current state + one closeup of the leaf, under and top side. I hope it helps and its clear enough to show my girl.