I generally don't slow the fans when I use them. I usually lower the bags to the canopy level. Or more often than not, I set them on the ground next to the plants. CO2 is heavier than air and by putting them on the ground I can get them away from the exhaust. In doing this, I feel that the circulation of CO2 is highly dependant on air movement. So during the test I won't alter the fans at all.Very curious about this myself. Wonder if you'll have to turn the fans down a bit so it's not exhausting it all out too quickly similar to using an evap humidifier in the tent. Either way I'm curious of your findings
Thanks for checking in @Dankerson!