Filter Media & Foam
Filters are essential for the health of your aquarium. They keep the nitrogen cycle going and help keep your fish tank inhabitants healthy.
Filter media is mainly used in freshwater / tropical aquariums but is sometimes used in marine aquariums on top of live rock. It can be added to a filter to improve or alter the quality of water flowing through it. The three types of filter media are mechanical, biological and chemical, and all are recommended to promote optimal aquarium health.