ZeoVit ZeoSpur Macroelements. ZEOspur Macroelements is a result of further development of the Zeovit system. It is the optimal addition to ZEOspur 2. Contains a.o. Lithium, Vanadium, Palladium, Boron, Selenium, Yttrium, Ruthenium, Lanthanum, Cesium, Samarium, Cerium, tin. Based on our practical experience with keeping corals with extreme coloration. Supports growth as well as color formation. Does not contain the "standard" elements but rather elements missing from synthetic salt mixes. Recommended in any tank system. Dosing: 5 ml 100L/25gallons / week