Could my Fluval 20 be broken?
This is my first time trying pressurized CO2 and I just purchased a Fluval mini pressurized C02 kit. For some reason I cannot get any CO2 through the regulator. I took off the diffuser and still got no CO2. I've played with the regulator valve but no luck. When I loosened the regulator valve CO2 was indeed coming out through the threading, so I know that is still good. Could it be that the valve is broken?