The biOrb combines the looks of a traditional fishbowl with the performance of a hi-tech aquarium. With the filter barely visible in the bottom of the globe, once biOrb is filled with water there is nothing to detract from its perfect 360 degree viewing angle. 21" Tall X 18" WideBlack base and topACRYLIC TANK: The 16 gallon acrylic globe is clearer and ten times stronger than glassFILTRATION: Five stages of filtration keep the water crystal clear and free of pollutants. The filter design uses a unique systemized five-stage method combining biological, mechanical and chemical filtration. This significantly reduces maintenance while ensuring that the water remains healthy and crystal clear for months between the simple filter cartridge changes (filter detail diagram in new window). Includes cartridge filter pad and holder, ceramic filter media, Stress Coat with healing power of Aloe Vera for removing chlorine and Stress Zyme for biological filtration.FOOD: Sample size packet of Hikari Staple pelletized fish foodLIGHTING: 10W daylight halogen lamp (light detail diagram in new window). Can be upgraded to the LED Light Kit which simulates a natural light cycle in your aquariumAquarium air pump (2.7 watt) High quality instructional manualA single transformer supplies 12 volt power to both the air pump and lightFor both tropical and coldwater fish. Compatible tropical fish include Dwarf Guarami, Harlequin Rasbora, Cardinal Tetra, Leopard Danio and Amano Shrimp. Compatible cold water fish include Goldfish and MinnowsEasy to maintain, perfect for novices & hobbyistsNOTE: Fish and plants not included