AA offers a range of simple-to-use, all-in-one beginning aquariums called BASIC Aquariums. Each has fully closed tank top filtration with simple filter cartridge changes, as well as LED lighting. What's within the container? SMALL aquarium with hood-mounted LED Completely enclosed tank top filter box with bio-balls and easily replaceable cartridges Pumping water LED USB adapter (OP: 5VDC 1A) color lens