[guyrandom]

No matter how many tents ypu connect, there will need to be an exhuast from tent to lung room. The thing ypu wpuld need to worry about kesping the temp and humdity locked in and staying constant. If you can find a way to keep temp and humidity lockdd then that is a recipe foe success. I currently havr a 5 x5 with and aC unit inside the tent. I have to have 2 exhausts, 1 pulling warm air from ac unit to the outside of the tent and another that is just an 8 inch opening at the top of the tent connect with some 8 inch ducting to make light tight.

[flowerpower]

First of all adding CO2 ian’t necessary. It is definately a plus and can radically improve yield. That being said; To introduce CO2 you better have your environment dialed in. High levels of CO2 increase the need for everything else. More water, more nutes, more light etc. The ambient CO2 is around 400PPM, I also live in my lung room (*bedroom), and just by being in there my CO2 levels go up between 600 to 700PPM. I’m completely satisfied with my results. I focus my attention on quality over quantity. I struggle now keeping my environment dialed, and see no need to complicate my SOP.