Brightwell Aquatics Calcion - Liquid Calcium Supplement for Reef Aquaria 2L / 67.6oz</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Highly-concentrated ionic calcium solution. l</li><li>Increases the concentration of calcium in marine aquarium water to provide corals and other reef-bui</li><li>Is ionic rather than chelated， and contains no unwanted organic material such as EDTA， gluconate， or</li><li>Over 50% stronger than most competing products. l</li><li>Free of phosphate， silicate， and organic material. l</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/51KFsoutuBL.jpg' noproxy></br>