The CPR Nano-Tank has been designed to make nano-reef keeping easy. The Nano-Tank's filtration system, which uses our very own filter media, Bio-Bale, is able to keep the tank clean and healthy with little maintance. This 6-gallon Nano-Tank, with a 13 1/2" x 11 1/4" footprint, is small enough to fit on a desk while providing quiet, reliable filtration. The Nano-Tank comes complete with biological filtration and a pump. The Nano-Tank can be purchased with one of three setups: Option one is the tank only. Option two is with the canopy, but no lighting. Option three is a complete canopy that includes built in 27w 50/50 PowerCompact.