Solid tipWhy in the world are you trying to setup tent city in your new house. 8 tents!!! thats nuts. Just build rooms, or use bigger tents.
You 100% need co2 if you want to max out genetic potential of a strain.
Dont expect anything special out of your first run. Focus on dialing in the environment and learning about how the strain you have feeds and what it likes, make adjustments. Next run do better.