In recent years media reactors have gotten more and more popular. Media reactors do one of two things: 1) they maximize the effect of filtration media; 2) they allow you to use specialized filtration media. Adding a media reactor to your tank can help increase water clarity, reduce unwanted nutrients, and reduce algal growth in your aquarium. Adding a media reactor to your tank can help increase water clarity, reduce unwanted nutrients, and reduce algal growth in your aquarium. We carry a wide variety of media reactors: Two Little Fishies Phosban Reactors, Lifegard Aquatics Turbo Reactors, Reef Octopus OCTO Media Reactors, and IceCap INT/EXT Media Reactors.Useful Articles: Media Reactor OverviewIWhy Do You Need Chemical Filtration?IRelated Products: Aquarium Filtration Media.