The video I posted was just to show how much water can be moved by air. The system was designed for a pond, not an indoor aquarium. On a large scale, a properly made air lift system actually uses less energy to move water than any electrical pump. As to the noise, is there anything such as a quiet bubble? LOL!It’s not a fair comparison unless the energy input is the same. A 5-10 watt power head can easily move 300 gph. An air lift system is capable of generating the same flow, but the energy input and the plumbing set up will likely be several times larger. There is also the loud noise byproduct of a large air lift system you don't want to be in your living area.