AQUATOP's FORZA Premium Quartz Rings provide a massive surface area for the intensive colonization of beneficial bacteria to grow. Made from sintered (heated and compressed) inert quartz, beneficial bacteria grow and colonize in the pores of the quartz rings which helps to eliminate harmful ammonia and nitrite levels in your aquarium water.

FEATURES:

Available in 3 sizes: 14oz, 28oz & 64oz

Biological filtration media that promotes beneficial bacteria growth

Improved shape increases internal and external surface area for beneficial bacteria to thrive 

Made of long lasting, highly porous quartz material

Aids in the breakdown and removal of harmful ammonia and nitrite

Includes reusable Mesh Bag

Suitable for both freshwater and saltwater filters

Great for both freshwater & saltwater use