Lower leaves turning plae green then yellow, Please help!

Hey my lower leaves are turning pale green then yellow, please help/advise

What are your details brother?
Lights:
Temp:
Grow area:
Nutes:
ECT..... might just as well ask, "I'm sick whats wrong with me?" LOL......

4 CFLs two 26W and 2 42W 6500k
Temps around 80s
grow area inside my pc case
nutes: None just organic potting soil and water

Leaves are curling also

How old are they? Looks like they need some food, yellowing at the bottom is usually N deficiency.