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Sometimes the carbon dioxide that accumulates in the air in closed buildings causes the pH of an aquarium to be low. We have the solution: it’s called CDX, a carbon dioxide adsorption system. Simply install CDX in our PhosBan reactor and connect it to the air intake of a protein skimmer, using a length of hose and our CDX adaptor to make the connection. The CO2-free air entering the protein skimmer soaks up excess CO2 dissolved in the aquarium water and so the aquarium’s pH rises.
Size: 750ml #40231 3L #40232