So I'm looking at starting my first grow (w00t), and I was looking for some input and what you guys/gals think of it. The Setup: I needed it to be fairly simple and I don't want to use soil so I've decided on building my own Undercurrent Recirculating Deep Water Culture (URDWC) system. I have a couple of questions about the water pump and air pump for the setup, like would a 1,000 gal/hr water pump be sufficient for a (2) 10 Gal bucket URDWC system? Also, what kind of air pump would I need for it? Lights: My plan was to run 2 plants under CFL's for the veg. stage. I was going to buy (8) "http://1000bulbs.com/product/6052/FC65-S65.html" for vegging, 4 per plant. Then when it came down to flowering I was going to buy (4) "http://1000bulbs.com/product/1605/FC65-S27.html" to run along a 400w HPS. Now my other question was about the temps. I'm probably not going to have to worry about the temps during the veg. stage seeing as its gonna be all CFL's. But, when I start up the HPS would I need to worry too much about heat? I planned on running a 16" oscillating floor fan on the plants the whole time, so dunno if heat will be a issue. Any input would be much appreciated.