Fascinations USB Desktop Aquarium / LED Clock Lamp Light Digital Calendar Fish Tank The USB Desktop Aquarium holds approximately 1 1/2 quarts of water and is a great home for any small fish The LCD alarm clock features time, date, temperature, snooze, countdown timer and 6 different modes of tranquil nature sounds for that zen moment anytime Also includes an adjustable overhead LED light, USB power connector, decorative rocks and low voltage pump