"My Aquarium" is an aquarium for your iPhone. Watch the fish swim around your aquarium. The iPhone can simply be tilted to look at the aquarium with a wider or narrower view.Move your finger on the iPhone screen to look at different parts of your aquarium. Touch the "lock" image to display a menu of options.When this menu is visible, you can move the decorations to new locations in the aquarium simply by touching the decoration on the screen and moving your finger to a new place on the screen. Also, touching a fish or a decoration will change it to something different. Also, touching the gravel will change its color.