yellow lower leaves

I'm growing my first plant, and it's about 7 or 8 inches tall 2 weeks in, a few nodes have popped up and the top leaves look healthy. However, the leaves on the bottom have begun to turn a shade of yellow, and it looks bad. How can I correct this problem?

how big is thay plant pot? and whot is the light? as you dont need to feed them yet?

it's an 8" pot i believe. I'm using one 30w cfl in a growing fixture, the kind that is metal and focuses the light. also, i haven't added anything to it yet, ie. nitrogen or phosphate.

how far away is that light? and have you feed it at all?

for now, i think the light is enough. It's about 3-4 inches above the plant, and it's on 12/12. I've been giving it a generous amount of water every couple days, and i just bought some plant food with nitrogen and phosphate, but i haven't used it yet.

you dont wunt to feed it till its about 4 weeks old? and its that light thats fucking it up, you need about 6 of them lights just for a small grow? so go out and by sum cfl's but if you can get an hps,, you wont look back,,

omg, but hps lights are freakin expensive! where can i get one cheap? and also, where can i get some cheap cfl fixtures?

i live in the uk where do you live??

i live in new york

i ive in the uk, just have a look on googel you will find wot you need,, just look for cfl 42w or moor