Good Evening & Welcome to The Farm!
I think what you have may be ok for now. In the long run though it probably is not going to work.
I did not see a description of your setup. That will help folks respond with a well thought out and relevant response.
As a basic rule of thumb you should change out the air in your grow room/tent at least once a minute. So for a 2x4x8 tent that works out to 64 CFM. Add (1x) for each accessory (duct, light, elbow, add 1x each) that works out to (4x)64CF=256CFM is the minimum rating of a properly sized fan. If you want to make sure it does not have to run on HIGH all the time, give yourself some headroom on the CFM rating & make sure the CFM ratings on the fans match.
Excellent idea! Are they linked/synced via the same controller?
Are they on opposite ends of the grow room/tent?
Is the Exhaust port high up (above the lights)?
Is the intake port low (close to the floor where the cool air is).
Thanks Again for joining us here at The Farm. If there are any questions you want to shoot my way or that you want my opinion on just add
@AnselAdams anywhere in the conversation and i will be notified.
Happy Growing & Blissful Farming
