This is my first time running a hydro system I used 2 gallon buckets, 4'' airstones, 10 gallon air pump per bucket, and a 400 watt light. I started these Afghani Kush clones on 01/19/13 started flowering 02/20/13. I am flowering with a metal halide bulb and substituting the red light spectrum with a 225 bulb red led panel.