Phosphate is a critical component of your aquarium ecosystem and must be balanced correctly in order for the biological foundation to thrive. GFO is designed strictly for removing phosphate and some level of silicate from the aquarium water. Tannins or stuff that makes your water yellow.Certain DOCs-dissolved organic compounds.Carbon is an excellent and very popular filter media because it is inexpensive and extremely powerful in terms of what it can remove from your aquarium water. Good ol' activated carbon, the media wonder. 5-Minute Saltwater Aquarium Guide: Carbon.52 Weeks of Reefing - Week 24 Carbon, GFO, & FIlter Media.You can find some awesome videos on BRStv where Ryan and the team dive deep into the science behind carbon and GFO. There is also mixed all-in-one media like the Chemi-Pure lineup or Brightwell Aquatics Purit that takes advantage of carbon, GFO, and resins mixed together. There are various media made from special polymers or resins, like Seachem Purigen and Blue Life OragnicFX. While the focus of our content here is around activated carbon and GFO, there really is a wide variety of different chemical filter media available to aquarists. Types Of Chemical Filtration The two most common chemical filter media used in saltwater aquariums are Activated Carbon and GFO - Granular Ferric Oxide. Typically those things are harmful or unsightly contaminants such as heavy metals, dissolved organic and inorganic compounds like phosphate or nitrate, compounds that create odors, and can even help with clarity by removing tannins (things that make the water yellow). You can think of chemical filter media like selective sponges, they absorb things but only absorb what they want and leave the rest. The reason we use chemical filtration is to remove contaminants from the water which is accomplished using specialized chemical filter media. What Is Chemical Filtration?Īs we stated above, during chemical filtration the chemical composition of the water is changed. When it comes to aquariums, this is most often accomplished via chemical filter media such as carbon and GFO. We are going to focus on chemical filtration and by definition, chemical filtration is anything that changes the chemical composition of the water. The three foundations of filtration are biological, mechanical, and chemical filtration, each of which plays a unique role in filtering water making it safe for your aquarium pets.
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