Check out my Aquarium Simulator- Its a Virtual Fish tank with 2 out of 3 scenes so far. Listen to the ambience and and watch the fish move in different patterns.  Launch as something to go to sleep to or as a virtual fish tank for your monitor.  No maintenance required, fish don't need feeding or cleaning, LOL

Enjoy  https://wadester1124.itch.io/fish-tank-aquarium-