Ok so first I did a search for purple stems and veins, here and google, and I saw 90 differing answers covering the whole specturm. Basically on only a few of my babies, they have purple leaf veins, or purple stems/ striped purple stems. Now on a few with yellowing leafs I took some proper steps and it went away. Now on a few of my babies, My Sour Alien LAW, and like 1 or 2 others, they have the praying lookin ( the happy plant finger tips slightly up ) nice new growth, the Sour Alien is bangin, just growing....... but yet her and my Skywalker both still have a purplish stalk and some of the leaves have purple veins, yet the plant looks happy. I use B.C. Grow, well the recipe to success box ( with a slightly dosed down version of their instructions) , was using Humboldt Organics but it smells to much like dead fish for me!!!!! ( attracts bugs too ) I am just wondering if anyone has any feedback, as I have checked the PH with a soil PH meter, on all plants its between 6-7, and I checked the ph of my nute solution, which is about 6.3-6.4 I ph my water to 6.8 normally. The last 2 waterings have been strictly water, like every other day, maybe every 3 days, and then today when they where nice and dry I feed, then will water 1-2 more times before feeding again. Any help would be apperciated. will try get some pics up tommorrow.