I hope this is not off topic. I love using 4k screensavers for my tv, like long forest walks, birds, or fish. Unfortunately almost all of the fish ones are creatures from the oceans. I like those too, but does anyone know of some nice, hours long, videos from freshwater fish or shrimp?
I miss my fishtanks, so i would really enjoy watching them on tv, whether in the wild or in big tanks.
While they are technically not screen savers, Green Aqua has loads of 4K videos of their aquascaped tanks, both freshwater and salt water. They mainly donut as a bit of marketing for their store, but I suspect they get more money from their videos and workshops.
https://greenaqua.hu/en/