FILTRATION 30 PPI
API® FILTRATION 30 ppi (pores per inch) promotes crystal clear water in your tank with a thick foam pad to filter small waste particles. Use these foam pads in FILSTAR XP FILTERS.
Put a foam pad into the bottom filtration compartment, above a 20 ppi foam pad. Every month wash the foam pad thoroughly in a basin of water taken from the aquarium. Replace the foam pad every 3 months. Never replace all filtration foam pads simultaneously so as to ensure optimum biological equilibrium.