20 Gallon Long Matten Filter for Nano Fish

Our custom Matten Filters are made in the USA specifically for Nano fish. Compared to our standard matten filters, these offer fewer pores per inch (PPI) to prevent clogging and reduce maintenance for tanks with a higher Bioload.  Matten Filters are the best filtration for freshwater shrimp keeping and breeding, and now we offer them for your fish keeping and breeding as well.  The amount of surface area the filter creates makes a great feeding surface for baby fish or shrimp. The large surface area and number of pores per inch allow for the maximum benefit from beneficial bacteria to thrive.