From one floridian to another, it can be done. I keep my tent near an ac vent towards the ceiling, it pumps the cold air right into the top of the tent, just gotta find those ways to keep the temps down. If it takes 4 fans it takes 4 fans. I do recommend an hid however, i noticed when i tried to grow with only florescent my rh would straight chill in the 70s-80s.