I've heard that these aren't too hard to make. I believe there are two types, Sulfur media and plastic media. Any information on the difference would be greatly appreciated.
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Here is one I built. I worked very well and got my nitrates down from 200 to arund 40-50 quickly. But it became too much work and I switched to vodka. It just the large contraption in the blue bin with the clear top.
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What are all these items?
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