This 15L (4 Gallon) Baby BiOrb Black is the perfect size for any space in the home. The Baby BiOrb is a low maintenance tank, making it ideal for children or busy professionals who don't have hours to spend cleaning an aquarium. The unique filtration system collects dirt and waste in the patented easily replaceable filtration cartridge, making cleaning the Baby biOrb no hassle. It¿s amazing how simple and quick the Baby biOrb is to set up. It comes with everything you need to start keeping a variety of small fish, just add water and fish . Nothing is more frustrating than getting home to find you need something else, which is why we include everything you need in the box, even the fish food! The Baby biOrb is ideal for children who want to keep their first pet, and unlike many aquariums the baby biOrb uses low voltage lights and pumps ensuring complete safety at all times. Even the aquarium itself is constructed using super strong acrylic which won't shatter like glass. The filtration includes a Low Voltage 12V Air Pump, BiOrb Filter Cartridge, Ceramic Media for biological filtration and both Stress Coat (water conditioner) and Stress Zyme+ (biological filtration booster). The Air Pump pushes water through the Filter Cartridge and water is returned to the tank through the Bubble Tube. An Airstone at the base of the Bubble Tube creates air bubbles that stream out of the Bubble Tube. Lighting: The BiOrb light comes with a 5W Halogen bulb. Food: A small packet Hikari Tropical Micro Pellets is included.