its a soil grow with some GDP and PU under a 600hps about 30" from them. The older and bigger leaves are yellowing and the new growth is also yellow but not as bad. All four of em are 4-8" tall and the bigger leaves are touching or almost touching the medium. Thanks for all the help in advance! i took a pic with my phone (all i got) but it sucks badly and i realized i dont know how to put them on the interwebnets....