it is just for fun. the net cup and hydroton are optional, for myself i wont be using a net cup or medium. I have seen an ebb/flow 2 liter grow online, so bubbler it is. the cfl's, those are due to the debate on what they can actually do. I believe someone can pull an ounce or better dried and cured. that will require scrog or some seriouse lst. from the plant down are the only restrictions from the bottle up the only restriction is the use of cfl's. so come on guys, dont look at it as a chore but rather a challenge!!! Still need the head honcho to send me an email though.