Watch as your monitor fills with water and real 3D fish begin to swim around the screen you were just working on. Features: Real time 3D fish that don't just swim back and forth, but towards you and away from you, up and down. Like real fish. Dymanic underwater lighting. So if the surface of the water ripples, so does the refracted light. The registered version lets you download and install additional fish from the website. See the website for details and pictures of all available fish. Select between tropical salt water fish, and fresh water fish, or mix them all together. Remember virtual fish can all survive in the same virtual water. Many options so you can customize it to your liking. With the full version, you can have as many as 40 fish swimming around at once, as long as your CPU can handle it. Feedback is always welcome. If this isn't the best 3D aquarium there is, then let us know how you think it can be improved.