This is my first time cloning and trying to grow from clones, and I am having a few problems. The first clone was taken around 3 weeks in to flowering, and the second one is 4 weeks in to flowering. So that will make them 3 and 2 weeks old or so. Now the first one I am guessing is Nitrogen deficiency, and the second one I am not exactly sure about. They are roughly 16 inches away under a 400w HPS. I am using a drip system with DNF nutrients. I had them at 400ppm, for the first two weeks, and upped it on May 31st (three days ago) to 800ppm. I have noticed that it went down to 700ppm that's why I am guessing for the first one its N deficiency. Any help would be great.