Thanks to its multi-stage cartridge filter, this acrylic aquarium keeps water clean and clear for up to two months--twice as long as traditional fish tanks. The durable 30-liter (almost 8 gallon) bowl is 17 times stronger and much clearer than glass, with a built-in halogen bulb that replicates natural light. The filtration system and lighting are concealed inside the top and bottom of the bowl, permitting an unobstructed 360º view of aquatic life. Includes biological/mechanical/chemical filter cartridge, air pump, gravel, fish food, water conditioner, and more. Plugs into AC. 17" H x 15 3/4" Diam. (10 1/2 lbs.)