I use a Nero 3 on my 20 gallon cube. It’s small so barely noticeable and saves on valuable real estate. Running it on pulse mode at 40% keeps enough flow and is quiet. I can *sometimes* hear it if the tv or ac is not on, if I run it over 50%, but not loud by any means.
I was considering the mp10 due to no wires in the tank and less heat, but the Nero 3 wire is not noticeable and the power head I don’t have any temperature issues.
the app is very easy to use and a plus if you’re already using AI lighting, to have both on the same app.
if you don’t use the snail/fish guard, you can slightly angle the Nero 3 as well.
oh… and it’s much cheaper than the mp10 if budget is an issue