Nitrates help Please

[dareefguy]

Originally Posted by Der_Iron_Chef

I know lots of people use filter socks where the water enters the sump from the display. Pretty easy to change out every few days or so.

You could also consider a DIY Coil Denitrator. If you do a search for it here on Canreef, you'll find half a dozen threads or so. You could also look here for a detailed plan/explanation.

I am using a filter sock on the return line where the water enters the sump. After that I have a little bit of coarse gravel on the bottom with some conch and some crabs.