From Digital Illusions Software:
Sim Aquarium 3 brings the most realistic coral reef aquarium to your computer screen. Its stunning, photo-realistic graphics recreate the beauty of 3D fish swimming freely in a 3D environment, including reef, with live clams and swaying sea life. Sim Aquarium 3 brings you as close to a living, growing reef as you can get on your computer.
Sim Aquarium 3 Free Edition contains two free aquatic scenes which can be used as a screensaver. There are also additional premium coral reefs included. Sim Aquarium 3 features: Two intricately detailed 3D coral reef scenes. 30 highly detailed fish species with complex swimming behaviors and appearance. Full interaction with the fish and their environment. Realistic anemone tentacles physics and fluid simulation. 3D glasses and monitors supported. Advanced graphic effects like fish iridescence, raytraced light caustics, complex water surface. Four different soundscapes. Can be used as live desktop wallpaper.
What's new in this version:
Version 3.8.66 is a bug fixing release.