What should the air pressure in my tent be? Positive or neutral to the room? I have a 3x3x6 with a 6 inch inline pumping fresh air through a carbon filter,(yes I filter the air going in, not worried about the smell) into the bottom, I also have a floor model AC/Dehumidifier blowing right on the intake which keeps the tent at optimum temp. I have my inline fan on the lowest setting and two vents up top, both 6 inches open to vent out. I figured fresh cool air into the bottom, pushes warm air, up and out the top, and in theory better CO2 flow. Back to my point, the walls on my tent push out about an inch when I zip her up. Could this positive air pressure stunt growth, and where would I even begin to research, air pressure for indoor grow tents and proper ventelation for semi dummies (stoners)
Maybe start here till someone chimes in 
https://ilgmforum.com/search?q=Negative%20tent%20pressure%20
This sounds like you have nothing exhausting the air in the tent. With the top vents open the exhaust fan is pulling both the tent air and the lung room air. I would close those and let some negative pressure in.
My humidifier blows warm air. Are you trying to lower the tent temps? You’ve got a lot going on to control the tent environment. I too use an inline duct fan to bring in fresh lung room air, circulating fans inside and an exhaust fan up high to vent the hot and stale air. The simpler the better Growmie 
Honestly with a 3x3 space One exhaust fan mounted in top of the tent with a hole open at the bottom, pulling fresh air in an exhaust and hot Stale out the top would be all you need. With negative pressure inside the tent.
Good luck 
Exhaust fan inside tent, mounted top of tent, feeding external mounted filter.
Like @kellydans said, open bottom tent vents (Shield from light during Night cycle, with intake “tube” or box).
Hot air rises, naturally and works in your favor.
Tent minor negative pressure acceptable, maybe.
AC-Infinity controlled fans work well.
Thank you so much. Will reroute my setup
Negative pressure is critical to proper exhaust imho. This tent exhausts best with a little “suck” vs. a little “blow” 
. See how the tent is sucking in just slightly?
If I wasn’t worried about scent and wanted to filter the air coming into my tent I would mount inline fan at top of tent blowing out and then just put a cheap furnace filter over your intake. Like one of the really cheap spun fiber filters that you can nearly see through. Carbon filters are too expensive to merely deep dust down.
Very true
Yes,
Helps in control actions for temp or RH
@CoyoteCody (Ebay seller) may have “tent pole holders” for added tent poles reducing tent collapse action.
His plant benders work great, IMO
She is getting bend training
Benders tie easily
I do, they are listed as high cfm kits, i make them in 16mm, 19mm, 22mm, and the occasional 25mm. Im also on esty, and amazon, but im not liking amazon for selling so far. Thanks for the shout out!