Fascinations Deluxe Jellyfish Aquarium provides all the ambiance and fun of a real aquarium minus the cleaning and maintenance hassles that are associated with one. This deluxe aquarium comes with 7 artificial jellyfish which will maneuver around the aquarium while plugged in. The lifelike, small jellyfish mixed with the 5 color lighting effects are sure to provide a soothing ambiance to any room or office you choose to set it up. The tank comes with an auto-off function after 4 hours so that you can leave it on without the worry of it staying on all night or day. The Deluxe Jellyfish Aquarium is 18" in length, 3.3" wide and 9.5" tall approximately.