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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Thanks!
Sent from my iPhone using Aquarium Advice