Ok I changed to 6" hoses. Does any one have any idea how many plants I can harvest. It will be 25.5" x 39" x 60". I am not sure what type of hydro system to go with. ow deep it needs to be or what size pots I will need or how many to try to fit. I will have a 600w HID. Hopefully the 6" in / out vents will do the trick for the heat. Any one out have any advise??