i used a hydroponic system...set up with timers and all home made this seems like the cheapest and easiest way to grow hydro..using 4inch plumming pipe, plastic hoses, 5 gallon bucket, nutrients and timers this system allows the grower to concentrate on other things...i used 400 watt hps hortilux throughout the whole process from veg to bloom...made the clones very bushy through the whole process opposed to a friends who vegged with a blue tint they got more taller less bushy...cycles went 4 times a day for 30 minutes per cycle then went to 3 times a day for bloom...not watering at night...leaving the closet doors closed over night allowed to colas to get more CO2 and extract bigger buds...