Jacob Hill-Legion Aquatics Posted April 23 Share Posted April 23 I’ve heard that mulm is inert but then I read this on the an article: “Mulm is beneficial to planted aquariums because they revitalize the substrate and add nutrients for plants to consume. While mulm may look a bit unsightly, it's actually an indication that you have a thriving ecosystem in your fish tank that can support life and process organic waste without a drop in water quality” what has your experience been? 1 Link to comment Share on other sites More sharing options...
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