Add carbon dioxide to your aquarium by using the Turbo-Jet CO2 Reactor from www. petstore. com. This reactor has a unique double spray design. It has upper turbo currents that trap CO2 on top and lower jet streams that fix water saturated with CO2 at the bottom. It is equipped with a bio-media that captures and dissolves CO2. For better results, you can use this reactor together with a pump or an internal filter. Proper stocking and maintenance of your fish tanks are essential in keeping the carbon dioxide at the minimum. The Turbo-Jet CO2 Reactor is ideal for medium sized aquariums carrying approximately 20 to 60 gallons of water. Its flow rate runs at the speed of 100-300 gallons per hour. This reactor is compact in size, measuring only two inches in diameter and ten inches in height. It is designed primarily to be set up inside the tank or in sump because it is potted.