Blah i think i need nutes but not sure, pictures.

Well like i said i did bary them half way when i replanted, but the leaves are what worries me, i would have thought there would be more sets, the height is ok.
 
I heard this is a difference when the leaves on the bottom of the plant turning light green rather than the ones on the top. just the leaves that are above the starter leaves are. i think this may be due to last week having them so close to the light, 12 inches away from the babies, rather than the 48 now? anything i should do or should the new light distance eventually show show improvement?
 
Sense it has been over a day, and more plants are starting to follow suit i thought i would bump this threat due to the latest question. also adding should i back the 400w hps light even more? it is at 48 inches, what i really want to know is why the growth rate is so damn slow / yellow two leaves above the starter leaves. any information at all would be appreciated.
 
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