What is chemical filtration?

Chemical filtration is one of the three types of filtration that can be used for an aquarium. The other two are biological and mechanical filtration. Biological filtration removes ammonia and nitrite from aquarium water by way of positive bacterial colonies that convert it, through oxidation, to harmless nitrate. Mechanical filtration is performed when water passes through a filter's foam pads, catching particulate matter like uneaten food, waste and decayed plants. Mechanical and biological filtration are the basics of a healthy aquarium, while chemical filtration is an option. Chemical filtration refers to any filtering substance that is designed to change the chemical composition of the water, but most often refers to the use of activated carbon or other cleaning resins. Activated carbon pulls dissolved organics from the water by adsorbing them. Activated carbon is made from various base materials that have been heated then steam-treated. The steaming process makes the carbon ...  more

Utilizing chemicals as a filtering substance in order to change the chemical composition of water. Chemical filtration most commonly refers to the use of activated carbon or other "cleaning" resins. When the water is so clean it's invisible, you're seeing the benefits of utilizing excellent chemical filtration.  more