don't waste all that light mang.... those plants are small still...
next time use some CFL's until they grow a little more. 2 weeks of 600 watts 24/0 is a bunch of wasted electricity for small ass seedlings... this time around you stunted their growth because of the feeding. next round don't feed them, at all, for at least a whole week after they break ground.
next time, without the nutes, the plants are going to grow a lot faster, so 1 week under CFL's, then boom, under the MH... you'll plants will be like 3-4 times bigger by week 3-4, instead of being tiny and pathetic like they are now.
and feed them once or twice a week, more than that burns them. be sure to keep the PH around 6.0-6.5. regardless what ppl heresay, PH is the most important factor to consider when indoor gardening. monitoring with a soil ph tester is inefficient. it's better to use the PH drops to properly PH the water and nute-mix before putting in the soil. you'll save 10 bux on the soil tester, and you'll have healthy plants......
peace!