i can figure out how to calculate, roughly the amount of air displacement required for this space. but can i simply run, say, a 6" duct from the attic (vented), to the bottom of the space.

and will this venting low help at all with keeping the space cool. i figured i would have to run round flexable duct someplace close to the HID light source.

anyway, let me know what you think about this

and p.s no pics tonight, had to charge my batteries.

Nutes i added for tomorrows watering (all photographed above) used at less than 1/2 strength :

1) FloraNova Grow
2) Flora Blend Compost Tea
3) Humboldt Roots Nutes
4) and a slight touch of the myco madness

Please let me know if i've totally fucked up because I haven't used this mix to water the large plant.

p.s.
Charas Reviewed by Charas on . Closet Grow one large (needs attn) and several seedlings (cfl/hps) - NEED HELP, pls okay, so where do i start. well, lets see...we rescued the large plant from a friend of a fri...well, you get it. This was done shortly after, about five days to be exact, of setting up this new closet space. We also have 400watt HPS, several combos of nutes, hormones, etc.. I have a few questions about this space. It vents to the attic via a 23watt 6" fan with no duct attached. There are two fans in the room, one blowing slightly over the canopy of the hurting plant. The other fan is Rating: 5