Snap-Together Geeetech G2/G2s Layer Fan - Square Fan and Fishtank air tube connector

Snap-Together Geeetech G2/G2s Layer Fan System. However, I didn't have a fan to connect using the parts that they have. I did have a spare 40mm fan I took from the 2nd extruder of the Geeetech g2s (I am only using one extruder). So I adapted it. I think I will ultimately put a better/bigger fan. But for now, this is all I have.

I have also considered the idea of feeding the Layer Cooling system with air coming from an external source - such as a very strong aquarium air pump, or simila