Fans for canopy

[GMGQ]

The problem is that the exhaust fans at the top will be pulling out HUMID air. Therefore they will corrode very quickly.

You dont have to have exaust fans in an aquarium canopy. The air WILL get out, dont worry. The point of the fans is to move air across the water surface to help evaporate the water.

Evaporation = Cooling.

Originally Posted by asmodeus

for a canopy I would have 1 on each end pulling in and 2 on the top to push out..... IME