But is O2 needed (added). I do use passive intake so never thought about it till I started to think about adding CO2 to the room. Does the plant not add the O2 to the room? And do I not want to completely seal the room to add CO2? Not sure about all this so I thought I'd ask lol. I bought the controller then started to think about heat, ventilation, etc. Lots to consider lol.
Yes I have also thought of this as well and every system that requires air bubbles always preformed better when the air supply for the bubbler was fresh air
the way I want to build my next room is totally sealed I will control all airflow.
My res bubblers will just have longer lines so I can places them on the outside of the room
no real science to back it but I believe it would make a diff
and for as little air as your add you wont need to worry much about losing co2
I just want my roots to be as happy as possible and im never set in some ways I allways try to improve