FLUVAL 307/407 AMMONIA REMOVER PAD, REPLACEMENT AQUARIUM CANISTER FILTER MEDIA, 6-PACKHAGEN FLUVAL 307/407 - Extractor de nitritos (6 unidades)*Premium 2-in-1 chemical and mechanical filter media designed specifically for the Fluval 307/407 and 306/406 High Perfmorance Canister Filters*Effective at removing and reducing nitrite, and trapping floating particles for clear water (debris, excess food, and waste)*Helps prevent fish loss and supports biological activity for a healthier aquatic environment*For best results, replace monthly or as required after testing water with your Fluval test kit (sold separately)*Includes 6 Nitrite Remover pads for use in freshwater and saltwater aquariums