Innovative Marine 3 Stage Filter Media Pack - Triple Combo Pack - Fits Pico 4 Nano 8 Nano 16
Keeping your aquarium clean has never been simpler. We've combined 3 of the best  filter media sponges to trap free floating particulate matter, remove pollutants that cause odor and discoloration, and combat phosphates to reduce undesirable nuisance algae.  Each Triple combo pack includes (3) mechanical sponges, (3) activated sponges, and (3) phosphate sponges for your filter basket