I will be moving soon and am thinking of how I am going to setup my new fish room. If I keep the room rather small (12'x12' or so) would I benefit by adding a few cheap bathroom exhaust fans or not? I figured I could turn them on every few hours to get the stale air out of the room. I will also have a large dehumidifier in the room. I also thought about an air exchanger but am not too sure about them yet. Thoughts/ has anybody tried this?