Air Circulation / Co2 concerns in grow tent

ycwang

Active Member
Hey guys, long time reader, first time poster.

Here is my situation.

This morning i purchased a Dr120 Grow tent. Dark Room Grow Room 3.9' x 3.9' x 6.5' | Grow Rooms

Shits to go in regarding the topic will be:
-6 in can fan 300 ish cfm,
- Carbon filter 18"ish diameter by 18" ish was attached to the fan from previous owner.
-20 lb co2 tank with co2 regulator system which can be plugged to a timer (15 mins interval)

Rest of the stuff going in are:
-600 hps with ac hood. (6" duct)
-3x3 ebb/flood tray etc.

Still need to buy
-2 duct fans for intake/exhaust

My current plans:
-for the 600 hps, it's going to get a 150 - 200 cfm duct fan to cool the reflector. (not sure if that's sufficient, need help)
-for the room, it's going to have a separate intake/exhaust i am planning on using a the 6 in 300 cfm can fan /w carbon filter on the roof of the tent for exhaust. And a 150-200 cfm duct fan for intake at the bottome of the tent. (not sure if that's sufficient, need help)

problems:
I am just not too sure how to regulate the air/co2 in the tent with the fan going on and shit. So in theory, i would want to turn off the air and shit when i am pumping in co2. but how long and how much, and how do i create a cycle that will use it efficiently. Also during the 12 on darkness, do i stick to the same cycle? I kindda know the hardwares, but i am just not sure how to efficiently schedule them; how to hook them up on timer schedule.

my gf broke my cam, gonna see if i can get some pic up with roomie's cam.

ANY comment, input, criticism will be greatly and sincerely appreciated.

cheers
 
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