<a href=showthread.php?s=&postid=10416321#post10416321 target=_blank>Originally posted</a> by Billybeau1
I can tell you from personal experience, if you are trying to reduce from say 20 ppm to zero, this does a pretty good job. But, if you are trying to reduce from 80 to zero, forget it.
There are better natural ways to reduce nitrate.
Read this article
Nitrate in the Reef Aquarium
http://www.advancedaquarist.com/issues/august2003/chem.htm
I have a refugium but maybe its not strong enough. U see my tank is 4ft x 2ft x2ft. My refugium is much smaller with miracle mud that was set-up a year ago. I have planted 5 mangroves growing with leaves quite regularly. Could the almost dead flow of water in the refuguim causing more and more deritius and nitrate ? There are no more copepods seen in the refugium anymore. Please help my corals refuse to open up and my fishes are dying.<a href=showthread.php?s=&postid=10416821#post10416821 target=_blank>Originally posted</a> by Percula9
It did nothing for my tank and found it clouded the water. If you want to lower nitrates add a refugium,water changes,reduce feedings and clean detritus out.
My calcium is 450 and my alkalinity is only 7dkh.<a href=showthread.php?s=&postid=10417928#post10417928 target=_blank>Originally posted</a> by Billybeau1
Do you have any idea what you calcium and alkalinity level is ?
My PH is okay 8.0. Although I find it hard to achieve 8.2 or higher. To increase Alk add the moment I'm dripping Kent Marine Kalkwasser. Is this good enough? Now my nitrate has lowered from about 60 to 40.<a href=showthread.php?s=&postid=10418344#post10418344 target=_blank>Originally posted</a> by Percula9
It will only remove phsphates. You may want to up your Alk a little, your at the bottom end. Is your PH okay? Replace the mangroves. What kind of pump are you using for the return?
<a href=showthread.php?s=&postid=10417913#post10417913 target=_blank>Originally posted</a> by Billybeau1
That depends on your water source and salt mix. If your water is good then I would start a series of 20% water changes very couple of days until you get your parameters back in check.
Do you run carbon ? If not you may want to run a good quality carbon to soak up any undesirables in your tank. Many of us run carbon 24/7.
<a href=showthread.php?s=&postid=10418730#post10418730 target=_blank>Originally posted</a> by babareef
What brand of carbon would u suggest? I've been thinking of that but my LFS said carbon don't really treat nitrates problem.