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How do I clean a CO2 diffuser if it becomes clogged?

Diffusers must be cleaned or replaced at some point because of algae buildup. Because diffusers can be made of different materials, follow the manufacturer’s cleaning instructions to use diluted bleach, vinegar, or other methods. For the Aquario Neo CO2 Diffuser, we clean it with the following steps:

  1. Make a solution of 50% water and 50% bleach inside of a cup so that there's enough liquid to cover the diffuser's brown ceramic disk.
  2. While the CO2 is still running and connected to the diffuser, take the diffuser out of the aquarium and stick it in the bleach solution for 5–10 minutes.
  3. Put the diffuser in a cup of fresh tap water and add 2.5 pumps of Fritz Complete water conditioner or half a capful (2.5 ml) of Seachem Prime dechlorinator.
  4. Swirl the diffuser in the cup and wait 5 minutes.
  5. Place the diffuser directly back in the aquarium.

For more information on CO2 systems in high tech planted tanks, read the full article.

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