Filter foam BioPlus 30 ppi (Fine)

The Filter Foam BioPlus Set 30 ppi for the BioPlus 50, 100, or 200 includes a fine replacement filter foam.
The combination of coarse and fine filter foams and fleeces allows you to customize to meet the filtration needs of your aquarium. It is best to replace the filter foams when you notice a decline in aquarium filter performance.