Japanese Koi Fish Wallpaper is a free video live wallpaper developed by Video Wallpapers. It offers a realistic and colorful live wallpaper with beautiful koi fishes. This app provides an amazing online wallpaper gallery, and it allows users to set videos as their lock screen.

One of the best things about this app is that it is free and saves to the SD card by default. The adjustable speed (frame rate) of the app does not affect battery life, making it compatible with many smartphones and tablets. Additionally, the app does not contain any push notifications or icon ads.

Overall, Japanese Koi Fish Wallpaper is a great choice for users who want to personalize their smartphones with a beautiful and realistic live wallpaper.