Lets talk mulm!

[jasper]

Yes it seems that theoretically it should be removing nitrates but there is always the dangerous possibility that it could be disturbed, I assume your not using any sort of mechanical filtration between your display and sump, a sock could catch most of that, my sump is bare and only has spots of detritus(mulm?) and it's been running for over three years, have never cleaned it out

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[slapshot]

Yes it seems that theoretically it should be removing nitrates but there is always the dangerous possibility that it could be disturbed, I assume your not using any sort of mechanical filtration between your display and sump, a sock could catch most of that, my sump is bare and only has spots of detritus(mulm?) and it's been running for over three years, have never cleaned it out

Sent from my DROID RAZR using Tapatalk 2

I have several sumps two that are slow flow, deep sumps. The slow flow deep ones build up the most. I don't like socks because I want the food floating around for my NPS. That said, I still wonder if it is removing Nitrate and if so it should be good. Until it get disturbed that is. Assuming it does not get disturbed what ids the downside of having it?