|Fish Type||Marine Fish, Tropical Freshwater||Marine Fish, Tropical Freshwater||—||Marine Fish, Tropical Freshwater||Marine Fish, Tropical Freshwater|
|Aquarium Type||Saltwater, Freshwater||Saltwater, Freshwater||Saltwater, Freshwater||Saltwater, Freshwater||Saltwater, Freshwater|
|Material||Plastic||Plastic||Synthetic Fabric, Mesh||Foam||Synthetic Fabric, Mesh|
Had to replace the Pre-filter in my Fluval G6 after adding , " a Natural Nitrate Reducer" per instructions. Thank goodness for the Fast Shipping. I have never had any issues with the Pre-Filter Cartridge, easy to use and clean. Makes maintenance super fast and easy and after the emergency Filter failure I will definitely be keeping extra Pre-Filter Cartridges on hand. The Fluval G6/G3 Filter Cartridges are getting harder to find, Thanks Chewy for having it available!