my space is a closet that is 4*4*8 i lined the walls with mylar. i use a 20 lb co2 tank and a regulator. i keep my co2 level at 1900 ppm.
i have a 600 wt hps and a 430 son argo. iuse a small oscillating fan in the closet. i have a can fan carbon ilter setup right outside the closet for oder control and it works great.
i grow in 3 gallon pots using fox farm soil and i use fox farm nute all organic. i water twice a week and use fertilizer every 2 weeks.