Two Little Fishies CDX Carbon Dioxide Absorption Media - 3 L

The Two Little Fishies CDX is a carbon dioxide (CO2) absorption media that will successfully bring your aquarium back to its normal state. This works by raising and maintaining pH levels in your aquarium water, which then removes the CO2. Easily connect the air intake for the protein skimmer to the outflow pipe on your PhosBan reactor, filled with CDX powder by utilizing the CDX Adaptor. It will act as an air filter for your aquarium, keeping your fish happy for a healthy and successful hobbyist experience. When you notice the media changing from a white to a violet color, this indicates that it is time to be replaced for new CDX media. To achieve the best possible results, be sure to always keep this media dry, tightly sealed and carefully follow instructions.