... the more fun to have. The USB Mini Desktop Aquarium is the home to two life-like tropical fish. ... the fish to gently swim about the tank. The aquarium is equipped with a high-intensity blue LED that ... Blue LED can be used to light-up the aquarium or for night operation Separate On/off switches for ... run on batteries (4 AA, not included) Comes with: aquarium tank, USB cable, 2 fish Just add water, connect ...