Zeovit Media ZEOvitr is a balanced mix of different zeolites. It is an absolutely natural Zeolite mix of highest quality. Run the ZEOvitr in a special ZEOvitr filter. Please note: 1. The ZEOvitr always has to be clean. To clean the material, push and pull the rod of the filter daily, which can be done simple, fast and easy within a minute. 2. If possible, the flow direction is from the bottom to the top, so that the material is always in the water. 3. The flow rate in the filter through the ZEOvitr is 400L/h per L ZEOvitr maximum! 4. Dosing of the ZEOvitr: take 1 L ZEOvitr for 400L water. 5. Exchange the ZEOvitr after 6-8 weeks. If used together with ZEObak and ZEOfood you can eliminate with the ZEOvitr Nitrate and Phosphate from your tank, and with some patience you will get very natural coral reef water after some time. your corals then will maintain their natural color and growth. Take care that you get the original Korallenzucht.de bags. Without our print on the bags the material is not Korallenzucht.de original product.