So, here's my idea. I want to use aquarium fans to circulate the air in the vivarium I am building. I'd like to do something like this: But I would like the wires to be inside the wall, and if possible, to have the fan open to the room as well to provide some good air exchange. Basically I want to ventilate the viv and circulate the air inside it at the same time. I want to also have exhaust fans at the top of the viv to pull the old, stagnant air out into the room. Does anyone know how I would go about doing this?