Korallen-Zucht Activated Carbon (active alcohol) is made especially for Saltwater tanks to help remove toxins, yellowing compounds and proteins. Helps to keep water clear. Use 1 L Korallen-Zucht Activated Carbon for 250 gallons/1000L water.

Rinse the carbon with hot tap water before use. Place carbon in mesh filter sock in your sump or place filter sock on top of the ZEOvit material in the ZEOfilter.