Throughout the extensive Options menu we only found one vague command to set when the aquarium appears, and oddly, this was only when the computer was running on battery. While it seems like every opportunity was taken for users to control the tank, the designers neglected to give them as much control over when the screensaver operates. Users can choose between seven different aquariums, different fish, lighting, and can even feed the fish. The program's options are the highlight of the program once the menu is accessed. Up to six species of sea creatures (the trial limits the tank to six) move in realistic ways and look lifelike, whether they are brightly colored angelfish or crabs scurrying about on the sea floor.

But the actual fish tank action is impressive. The program has a somewhat confusing interface that requires the user to right-click on the aquarium as it's running in order to access the Options menu.

With a surprising amount of options, you can control virtually every aspect of the program except for one important one. Dream Aquarium Screensaver offers users an opportunity to turn their computer screen into a fish tank when they are not using it.

Best desktop aquarium screensaver