- Location
- Baiting Hollow Long Island NY
I built this coil a few years ago and it worked well. A de-nitrification coil is a simple device that reduces nitrates to zero for no money and it is a simple design costing maybe $25.00 to build. Hurricane Sandy put an end to the thing as it needs constant water flow and a few days without water flow will make the thing as helpful as some of our rock singers. I have posted the construction before but I will do it again in my book that is not out yet. Basically it is a long tube where anerobic bacteria grow on a diet of nitrates and Vodka. The Vodka keeps them smashed so they don't realize they are working for free. The thing also needs 3 weeks to a month to start working but now it reduces nitrates from 40 (which my reef is) to zero. It is still cycling in my workshop and I will again install it on my tank as soon as I get some time.
The device is just the blue tube, the rest of the stuff is just my normal workshop stuff.
![](/forum/proxy.php?image=http%3A%2F%2Fi258.photobucket.com%2Falbums%2Fhh270%2Furchsearch%2F2014-12-13081858_zps2ac5a22b.jpg&hash=d57c7f96f9dc42cafcde71cb059e589b)
The tube on the right is tank water and the tube on the left is water that leaves the coil.
![](/forum/proxy.php?image=http%3A%2F%2Fi258.photobucket.com%2Falbums%2Fhh270%2Furchsearch%2F2014-12-13081851_zpsa4d9882a.jpg&hash=42bb989c63683e9d775ff77ba77e16d8)
The device is just the blue tube, the rest of the stuff is just my normal workshop stuff.
![](/forum/proxy.php?image=http%3A%2F%2Fi258.photobucket.com%2Falbums%2Fhh270%2Furchsearch%2F2014-12-13081858_zps2ac5a22b.jpg&hash=d57c7f96f9dc42cafcde71cb059e589b)
The tube on the right is tank water and the tube on the left is water that leaves the coil.
![](/forum/proxy.php?image=http%3A%2F%2Fi258.photobucket.com%2Falbums%2Fhh270%2Furchsearch%2F2014-12-13081851_zpsa4d9882a.jpg&hash=42bb989c63683e9d775ff77ba77e16d8)