alrighty, looked into these, so basically it is a closet?

my step dad owns a construction company, so i am thinking he may be able to help me build something similar and simple....to save a little green.

how big would you reccomend the closet be with a 6 plant hydro with 17 gal res, and 1000 watt hps?

now what i am very confused about is the entire fan part of the grow.

now i realize a small rotating fan located by the plants will be good, but what else do you reccomend? or is a carbon scrubber setup enough?

thanks, haha i am gonna have more questions after this by the way