TOP FIN EF-S Element Filter Cartridges Fish Tank Adsorb ammonia, heavy metals and other harmful components in the water. Effectively balance the PH value of the water body to achieve a stable water state Zeolite can improve the fertilization efficiency of aquatic plants, make your aquatic plants, nitrifying bacteria grow faster, live more comfortable and more health.EF-S filter cartridge: 1 inch thick cotton, 12 grams of active carbon, 5 grams of zeolite PF-S filter cartridge: 1 inch thick cotton, 20 grams of active carbon, 10 grams of zeolite PF-L filter cartridge: 1 inch thick cotton, 30 grams of active carbon, 15 grams of zeolite
