* CERAMIC FILTER RINGS Provides a porous surface area for the growth of beneficial bacteria
* FOR BIOLOGICAL FILTRATION Important for maintaining a clean and healthy aquatic environment
* 1 pack contains 500 ml (38pcs) of ceramics rings
* bio ceramics was tested on Plecoceramics pleco farm
These Bio Ceramic Rings are good for all types of filters. Its cylindrical and hollow shape allows water flow through and less likely to get clogged. Ceramic Filter Rings provide a porous surface area for support of biological aquarium filtration.