Korallin C3002 Calcium Reactor w/Eheim Pump up to 800 Gallons

The already best-selling Kalkreaktor (Calcium Reactor) in Germany has become even better. It completely replaces Kalkwasser, 1 or 2-part Calcium/Buffer powder & liquid dosing. The new and improved Korallin kalkreaktor allows a simple, elegant and high efficiency production of calcium hydrogen carbonate including the necessary balanced carbonic acid. Sit back and watch your aquarium`s pH and dKH being kept at optimum levels. Together with our reliable CO2 System, this is the most maintenance-free Kalkreaktor setup in the world. Ca2+ + 2HCO3 = Ca(HCO3)2 = CaCO3 + H2CO3 Calcium + Hydrogen Carbonate =Calcium Hydrogen Carbonate = Calcium Carbonate + Carbonic Acid A Kalkreaktor setup (ie: one with CO2 System and CaCO3 media) is expensive only at the beginning. You save money in the long term because a 5-pound CO2 refill lasts you 1.5 years on our Kalkreaktor (and only ours) while a 7-kg CaCO3 media lasts you up to 1 year! And no more tedious daily Calcium dosing. A pH Controller is no