Sulfur smell

[ABee]

Hello, my tank smells like sulfur, most likely the cause of anaerobic bacteria under the substrate. (I have sand). The tank contains a couple of small snails and a jack Dempsey. My question is how do I get rid of the smell while the fish are still in there? I don't want to stir the substrate and do a water change for fear the fish well be badly affected from the substrate stir...
Thanks!


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[RobbFErwin]

Most likely is smelling that way from the water conditioner you're using

 

[Ricky 1]

How often do you do a wc, and what %? I would not disturb the substrate............

 

[ABee]

I water At least 25 percent, once a week.


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