Super Activated Carbon is the best quality filter carbon and absorbs colour and toxins from the water in a short time while maintaining a neutral pH. Super Activated Carbon is the best quality filter carbon, it is phosphate-free and it guarantees optimal results. Super Activated Carbon is highly suitable for freshwater and marine aquariums and ponds, providing crystal-clear and healthy water. Contents 500 ML, with free filter bag, for easy use and replacement of the Super Activated Carbon.