The Animated Fish mod for Stardew Valley adds the following animations to the fish in the game:

If you don't like some of the animations, you can disable them by setting the value to false in the config.json file.

There is also an option in the config.json file to set the speed of the animations. This will allow you to change the animation speed for each fish.

When you first install the Animated Fish mod, you will need to make a few configuration changes in Stardew Valley. The first thing you need to do is to open the game and then load the Stardew Valley folder. Next, you need to open the config.json file and save the changes that you made.

Now you can enjoy the animations of the fish.

Note that this is a standalone game, you will not be able to play it if you don't have the game already.