The three plants in the pictures are all bag seeds. The two in the back have just sprouted and are doing great. The one in the front has been going for about 3 weeks now and is severely yellowing. i just FIM'd it and the new sets of leaves are coming in very slow. IN the box there is two 150 watt equiv. soft white CFL's. They are in Virgo Potting soil which does have nutes added. The only other additives i have given them is superthrive; which really helped the yellowing for the first two days but after that it continued. Any Advice on what to do to save this plant. And also any thing else i should do differently since this is my first grow.