Marineland Bio-Wheel Assembly Replacement

Description In-Store Availability –> Marineland Bio-Wheel Assembly Replacement is for Eclipse Model 2 & Emperor 280B & 400B Filters. As the Bio-Wheel rotates, beneficial bacteria grow and thrive on its super dense surface. As water flows, the bacteria eliminate ammonia and nitrite on contact. Marineland Bio-Wheel should not be replaced unless damaged. Features:Irregular rotation of the Bio-Wheel is also normal Discoloration of pleated Bio-Wheel material is normal and desirable A Bio-Wheel rotating at any speed is working to eliminate toxic ammonia and nitrite.