Features:

Clarify your water naturally and cultivate beneficial bacteria with these Polypropylene Bio-balls! They promote gas exchange and increase dissolved oxygen levels, then filter the water as the bio-balls combine with organic waste to dissolve it.

   With the new design of bio-sponge inside, the biological loads are maximized within much smaller filter areas

   Free reusable media bag for easy handling

   Bio balls do not require replacement unless damaged or destroyed

   In the event of excessive buildup, you may gently rinse with water from an established aquarium, if desired

Dimensions:  

Diameter of bio ball: 1 inch

Size of media mesh bag: 16x16 inch

 

Includes:

500 pieces of 1" bio balls in one media bag, approximately 2 Gal