Two Little Fishies CDX 750mL

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Carbon Dioxide Adsorption Media. CO2 adsorbing media for PhosBan Reactor or similar aquarium reactors. Innovative media helps keep pH-lowering CO2 out of your aquarium. Replace exh austed aquarium media when it changes color to violet. Two Little Fishies CDX Carbon Dioxide Adsorption Media takes a novel approach to pH management. Accumulation of CO2 in the air (especially in closed environments) can make its way into an aquarium through any device that draws in air. Once dissolved into aquarium water, excess CO2 can lower average aquarium pH.When installed in a media reactor and used in conjunction with a protein skimmer, CDX works in two ways to help maintain higher average pH, vital for healthy reef aquariums. First, CO2 entering your protein skimmer is removed. Second, the CO2-free air injected into your reef aquarium via protein skimmer effectively removes CO2 dissolved in the water. Color-changing CDX media turns from white to violet to indicate exhaustion.Size: 750 mL Show more