You didn't answer my questions so it's impossible to try to help you.James40 said:10g i change 20% every 5 days an i already use carbon an you can smell it if you lift the lid of the hood an stick ur nose in it
Emg said:A tank shouldn't have a bad smell to it.
You might want to do a good water change and gravel vac.....and put some carbon in your filter.