A free app for Android, by ZippO Wallpaper Series.

Are you someone who loves fish? Well, here you go! Pet Fish Live Wallpaper 2021: HD 4k koi Aquarium is an app that will provide you with an amazing ocean tank live wallpaper experience for your mobile.

The first thing you have to do is install the application. Then, you have to set your desired wallpaper as your home screen or lock screen.

The free application contains amazing background pictures. You will be amazed at this cool underwater aquarium. You can set the theme, the color, and the background of your Android device.