tell me about your watering regement?
how often?

can you show us the roots...?

go ahead and lower that 400 watt hps a little.. you have plenty of fans from the looks of it..

Are you maintaining your ph at 6.5?

they look hungry.. I can't tell if that is the picture or if they are really really light green? but they look a bit hungry..

what's your PPM?

: )