B-Ionic Calcium Buffertwo-component liquid supplement system. When using equal volumes of each component, the aquarist can easily maintain calcium and alkalinity levels with no mixing powders, disruption of ionic balance, or addition of organic chemicals. In addition to supplying highly concentrated calcium and carbonate alkalinity required for calcification,B-Ionic Calcium Buffer System also provides all other important major, minor, and trace elements in the proper ratios to duplicate the composition of synthetic seawater. As a result, B-Ionic Calcium Buffer System will help restore inorganic ions lost from protein skimming and help maintain the ionic balance of the aquarium water.B-Ionic Calcium Buffer is sold as a unit, which consists of 2 bottles (component 1 and component 2), plus a measuring beaker(except 2 gallon). When used as the sole source of calcium and alkalinity, ESV recommends daily additions of 1 ml. of component 1 and 1 ml. of component 2 per 2 gallons of aquarium water. As a calcium and alkalinity booster for aquaria using kalkwasser, ESV recommend half that dose. Since each aquarium has its own unique dynamics associated with calcium and alkalinity depletion, these dosages can vary as dictated by calcium and alkalinity test results. In general, ESV recommends maintaining 3.0 - 3.75 meg/L alkalinity and 400 - 450 ppm calcium ion concentration. Since B-Ionic Calcium Buffer is in liquid form, additions to the aquarium are quick and simple (no mixing or measuring of powder involved). The time required is usually less than the time it takes to feed your fish.