The Aquarium Lamp will bring a relaxing and soothing atmosphere! Features: -The movements of the 3 Pisces are so realistic that you will wonder if they are real! -Features 7 color changing LED light effects, so you can create a magical atmosphere! -Dimension: 9″ tall (perfect size to easily place on any surface) -Operates via USB cable or 4 AAA batteries (batteries included) -Add a few drops of soap to reduce the density of the water and make the fish sink -The lamp does not generate any heat