Hey guys, just get done setting up my grow box for my first time grow. It has a 300W equivalent CFL (about 4500 lumens) hanging over the plant with a color temp of 2700k and 2 24" tube fluorescents (about 1k lumens each) that are like 70W equivalent each with a color temp of like 7200k. I used almost 8 quarts of soil of miracle grow moisture control in the bottom of the grow box and I'm planning to grow one plant about 20" tall after the flowering is done. I'm hoping to get about 2 more grow boxes like this. I ordered 5 feminized white widow seeds.

So I've read quite a bit about growing but I just want to get my plan down and get a last couple of questions answered.
-How much would one 20" white widow plant yield if I did a reasonably good job? How about if I did a great job?
-Seedling and through vegging phases are about 20 hours of light and 4 hours dark right?
-Flowering is 12 of light and 12 of dark right? and you're supposed to keep the starting hour of night the same when you switch times to minimize stress right?
-How much is it going to grow during the flowering phase? I need to know so that it can get done right at about 20".

Last odd questions, I know plants use CO2 during the calvin cycle IIRC high school bio correctly. Would using bubbly (CO2 filled) water have any advantage over using tap water?

Thanks guys!

EDIT - BTW. it's a 13"x8"x22" grow box. I'm assuming that's going to be about just right for one plant right?
SnowGrow Reviewed by SnowGrow on . First Time Grow Hey guys, just get done setting up my grow box for my first time grow. It has a 300W equivalent CFL (about 4500 lumens) hanging over the plant with a color temp of 2700k and 2 24" tube fluorescents (about 1k lumens each) that are like 70W equivalent each with a color temp of like 7200k. I used almost 8 quarts of soil of miracle grow moisture control in the bottom of the grow box and I'm planning to grow one plant about 20" tall after the flowering is done. I'm hoping to get about 2 more grow Rating: 5