Nitrite Remover for Fluval FX4/FX5/FX6 Canister Filters, 3 Pack

Designed specifically for Fluval FX High Performance Canister Filters, the resin impregnated nitrite remover blocks work twice as hard as an effective filter media for mechanical as well as biological filtration.

Main features :

• Are designed specifically for Fluval FX filters;
• Are effective in controlling and eliminating nitrite;
• Effectively trap floating particles (debris, excess food, waste, etc.) to leave water clear;
• Help prevent fish loss;
• Support beneficial bacteria for a very healthy aquatic environment;
• Are custom-tuned to increase filtration efficiency;
• Should be replaced monthly or as needed after testing aquarium water with the Fluval test kit, for best results;
• Come in a handy pack of 3;
• Suitable for freshwater and saltwater aquariums.