Fluval carbon is very pure activated carbon that is ideal in both Fresh and Salt water. The inner matrix structure provides a large porous area that permanently traps organic waste while removing liquid wastes such as urine, dyes or many other impurities from the water. The result is sparkling clear aquarium water. Suitable for the Fluval 103/203/303/403/104/204/304/404 300g (3.5oz) (3 nylon bags each packed with 100g) 375g (13.22oz) Bulk
300g (3.5oz) (3 nylon bags each packed with 100g) 375g (13.22oz) Bulk