So just a couple of questions before I do this. First off, I plan on doing a bubble bucket up with a 400 watt HPS light. Is this a good set up for one plant? Can I plant to plants in a bubble bucket? I heard that the easiest way to get busted is by looking at the electric bill. Will a 400 watt light give me away? Also, what nutrients should I use for this set up? Thanks for any help!
400W HPS not ideal for vegging plants.... use Metal Halide or CFLs in the correct spectrum to supplment the HPS. More than enough light for 1-4 plants depending on size. Easiest way for a grower to get busted is by telling people... a small-scale grow won't increase electricity enough. Multiple plants mean you will want to upgrade to a bubble-tub (plastic bins) with multiple plant sites drilled in the top. GH Nutrients are good but the best bet is searching the forums for good hydro nutrients.