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CDX Reactor Kit

Product code: 7514

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Ships Monday, June 1 if ordered in the next 1 day, 16 hours and 57 minutes!

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CDX Reactor Kit

  • PhosBan Reactor 150
  • Two Little Fishies CDX 750 ml. - Carbon Dioxide Adsorption Media
  • Two Little Fishies CDX Adapter for PhosBan Reactor

CDX Reactor Kit

The PhosBan Reactor 150 is designed with the upflow principle to achieve the most efficient use of PhosBan™ or other chemical filter media.
By pushing water from the bottom upward through a dispersion plate, it forces an even distribution of water through the media, and prevents channeling. 
It can be mounted hanging on the back of the aquarium or below the aquarium. 
Hose barb connections are for 1/2 inch i.d. tubing. Includes 1/2 inch barbed ball valve for flow control, and hose clamps. Recommended flow rate is 80 to 90 gallons per hour.


  • New twist off lid for easy media replacement! 
  • New elbow attachments can be rotated or removed to suit your installation. 
  • Can be installed as hang-on, in-line, in-sump, above tank, etc. 
  • 17.5" x 4.5" 
  • Fills with 130 grams (250ml) to 200 grams (385 ml) of Media.
  • One reactor is designed for up to 150 gallons. 
  • Recommended flow rate: 80 gph for 130 grams PhosBan, 90 gph for 200 grams. 
  • Use with any granular chemical media, including HydroCarbon 2 Activated carbon or ROWAphos. 
  • Tubing and pump NOT included; uses 1/2" I.D. vinyl tubing. 


Two Little Fishies CDX 750 ml. - Carbon Dioxide Adsorption Media

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.

Two Little Fishies CDX Adapter for PhosBan Reactor

Adaptor that allows the air line from a typical protein skimmer to connect with a PhosBan reactor for making the reactor serve as a carbon dioxide adsorption filter.

For use with TwoLittleFishies Phoban Reactor and CDX Media.

1/2" x 3/8" fittings

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68.95 In stock