After a period of time in use you will see algae is developing on your Co2 diffuser. This will prevent Co2 from being dissolved in your tank water. Below are my steps to clean Co2 diffuser
1. Take your diffuser out
2. Dissemble it
3. Take ceramic out
4. Soak ceramic in H202 (Hydrogen peroxide) at least 8 hours
5. Gently brush dead algae off
6. Let the ceramic dry naturally in another 8 hours or
7. Bake it oven in 5 minutes at lowest mode
8. Take ceramic out and wait until it's cool
8. Assemble your diffuser
1. Take your diffuser out
2. Dissemble it
3. Take ceramic out
4. Soak ceramic in H202 (Hydrogen peroxide) at least 8 hours
5. Gently brush dead algae off
6. Let the ceramic dry naturally in another 8 hours or
7. Bake it oven in 5 minutes at lowest mode
8. Take ceramic out and wait until it's cool
8. Assemble your diffuser