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- What I got...
oh me too and I keeping upgrading right now I run a 6" and 4" intakes during flower but once i chop the 4" goes in the dry tent.. I have a 8" raxiel cheap fan for intake which is too big but it's what I had... I plan to purchase another 6" for the 4x4 so I'll have (2) 6" exhaust fans for plenty of air movement one for heat and one for RH with the intake also... The 3x3 runs a 6" exhaust and that's it no intake fans and that tent seems ok but haven't had it packed yet hoping this runI believe in going overboard on an exhaust fan. It's an 8in fan with a big filter. My inlet tube is only 4 inches. That's mainly just not taking up a lots of space and it does help direct the flow better. I bring it down to the main circ fan. Most of the flow hits the fan and is blown across the tent. Some of the flow does go past the fan and to the lower part of the canopy. I played with some smoke testing when I set up the new light.
I have noticed some temp and rH layering once the girls get big. That kinda guides me to perform some defol.
I like going big on the fan for flexibility