Up North Posted December 9, 2022 Share Posted December 9, 2022 Help me understand biological media in sumps. Whenever is see biological media in a sump it typically in bags just sitting in the bottom or those small bricks (can't remember what they are called) stcked on the bottom of the sump. The media is not in direct flow of the water vs a HOB or canister filter where the water is rushing across the media. Why don't sumps have a series of baffles filled with media that causes the the water to up through the media and spill over to the next section and go down through more media then back up and down and so on? Thanks Link to comment Share on other sites More sharing options...
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