Here is what I think of the nano pump. It’s a very cost effective pump. It’s more of a pico pump than a nano aquarium pump. It’s is exactly as advertised. Pulls 2.4 watts. Flow isn’t super strong but isn’t weak. In the video that’s 16” across. The pump is extremely small in size. That’s why I say more of a pico or a smaller nano return. Noise is very low. If you put your ear close to the aquarium. You can hear it. I’m being extremely picky. For the purchase price. It’s a total Win win. If your looking for a small cost effective pump.