This is one of my favorite aquarium screensaver for windows.
I have recorded my pc desktop screen and i made this video using a short video scene in repetitive loop, if is to loud you can adjust the sound volume.
Marine Aquarium have many interesting features: options to choose fish from twentynine different species, customizable settings for light/sound/background, moving speed, options to change background or light colors.
If you want all amazing features support the developers:
https://serenescreen.com/v2/