Characin Swordtail Tetra Wallpaper is a free animated desktop wallpaper that brings virtual Characin Swordtail tetra swimming around your desktop while you work. You will see a school of Characin Swordtail fish swim closely together and you can put swimming Characin Swordtail tetra fish anywhere you want. The swordtail characin is a member of the large family of tetras. It is a small silvery fish that rarely grow longer than 8 cm.