aniPet Koi Live Wallpaper simulates koi swimming in a pond with lily pads. 30 koi types. Up to 15 koi in the pond. Able to feed koi and koi grows. Matured koi may have babies. Random dragonfly and butterfly animation. Background change. Many options available, such as koi moving speed, growth speed, food type, lily pad moving speed, water color and transparency, etc.