Red Sea Fish Pharm ARE22023 Reef Foundation Buffer Supplement-B for Aquarium， 500ml</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Reef foundation B is a complex of carbonate and other buffers present in seawater that maintain proper alkalinity and pH</li><li>Calcium， magnesium， strontium and carbonate are the basic foundation elements of coral skeletons</li><li>All of these elements need to be available in balanced proportions for coral health and growth</li><li>Includes a convenient measuring cup for easy dosing</li><li>Available in 500-ml bottle</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/416NeFQZQFL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41gSYKH7TRL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41kL2ZnBdAL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41KV2%2BhSg2L.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/313fvimkbjL.jpg' noproxy></br>