Has anyone tried Brightwells NitratR resin?

ebushrow · Nov 7, 2015

saw this at a LFS yesterday....pretty pricy locally, but wondered if anyone had tried it and what kind of results you had gotten...

Randy Holmes-Farley · Nov 7, 2015

Ive not tried it or heard from anyone who did, but I'm skeptical how well it binds nitrate from seawater where there is lots of chloride ion (and sulfate ion) present (which is how it is regenerated: by placing it in a chloride solution). Admittedly, the regeneration solution is more concentrated than seawater, but the concept is the same; chloride competes with nitrate for positively charged binding sites.

I'm curious to see if anyone has used it and seen a rapid decline in nitrate.

FWIW, nitrate is an unusually difficult ion to selectively bind in this fashion.

DiverGirl82 · Nov 7, 2015

I just took it out of my sump. It didn't really seem to do anything. But my nitrates weren't super high to begin with. And I was only using it in a media bag.

ebushrow · Nov 7, 2015

Randy Holmes-Farley said:
Ive not tried it or heard from anyone who did, but I'm skeptical how well it binds nitrate from seawater where there is lots of chloride ion (and sulfate ion) present (which is how it is regenerated: by placing it in a chloride solution). Admittedly, the regeneration solution is more concentrated than seawater, but the concept is the same; chloride competes with nitrate for positively charged binding sites.

I'm curious to see if anyone has used it and seen a rapid decline in nitrate.

FWIW, nitrate is an unusually difficult ion to selectively bind in this fashion.

.... I kind of thought the same thing....I know there are gfo binding resins, but I am pretty sure they bind differently than nitrate ( I will defer to you on that, as I am no expert) it was 90.00 for a bag and thought what a good idea....if it worked....we seem to be embedding a lot of stuff these days into resin beads... Thanks for the thoughts....I wasn't sure it would work either