best way to cool 20 1000watt light 8inch aircooled radiants

for sure im gonna post pics once i get the house rewired and get all my stuff in there should be by the end of the week

The county i live in only lets me have 6 flowering plants. its not much but its a start. I assume you are doing a co-op? What county are you in?

alameda county

i would say 12" aluminum duct with 2500cfm to pull air trough all 20's in series.