Penn-Plax PennPlax Cascade FiltaPack Aquarium Canister Filter Media Bag with Bio Rings 10 Oz 1Pack

BIOLOGICAL FILTRATION Along with providing a compact and easytohandle design the nylon mesh filter bag helps create a simple solution to aquarium canister filter media replenishment CLEAN CRYSTALCLEAR WATER The ringfilled bag helps establish a biological bed for your aquarium and optimize the colonization of anaerobic bacteria HELPFUL INSTRUCTIONS If you notice that the Bio Rings are getting a bit clogged simply clean them in a separate container with some of your aquariums water This allows for the colony of anaerobic bacteria to remain intact within the porous Bio Rings MEASUREMENTS Size 10 Oz Quantity 1Pack SHOP PENNPLAX FOR ALL YOUR PETS NEEDS PENNPLAX is a manufacturer and distributor of top quality pet supplies who specialize in creating excellent pet products for animals both great and small.