Need help ASAP, with my discolored leaves.

Hi.
My strain is Jack flash. It is about 2 weeks old. The color is lime green, really light green, comparable to my other strains, which are showing normal green. Could this be caused by this strain, or why this light color ? Along with this discoloration, it has not been growing half the size, comparable to the other strain I´m growing. http://i880.photobucket.com/albums/a...0/DSCF3187.jpg
Another thing is that my other strain - Northern lights, which has been grown at the same time, has started showing in the lower leaves (fan leaves ?), looseness, and distinct dropping, which you can see in the picture I´ve added.http://i880.photobucket.com/albums/a...0/DSCF3176.jpg
What could be the cause of this ? The plant is having small (a few) yellow spots. What could be the cause of this ? Since they are not that old, and due to the transplantation, I have not started giving nutrients yet. From what I have gathered from nutrient problem, this might be due to deficiency in N, or what would you say, or is it temperature problem?? Should I start giving nutrients (with high N level), or is it to soon (plant is little more than 2 weeks old)? I also have Alg-A-Mic from Biobizz, could this be a good time of starting using it ??

Thanks alot for help, highly appreciated.

your pics aren't working

post your pics directly to these pages, not photobucket ... start using your normal grow fertilizers now, BUT, only use half-strength of label directions, and ONLY apply once per week ... many more plants are damaged from too much feeding, as not enough ... good luck :smokin: