I saw a video of a guy using only fans to circulate the air. is that okay. I thought I need fresh outside air. do the plants really need co2? I saw a guy get a tank of co2, I don't want to have to be go getting a tank filled with co2. he was using bubble water instead of co2. does that really work? so the HPS lights and everything else I have to plug in uses a lot of power, what do I do if the place I plug everything into shuts the breaker off. I'm doing it in my room in my basement, I don't want the breaker to go off everytime i turn everything on, is there a way to check how much power the plugs can take?? any and all advice is great, want everything to be right the first time around,