Guys, nitrite is non-toxic and of no concern in a reef tank, and most here at R2R don't bother testing for it at all. Check out RHF's article on nitrite toxicity here:
https://www.reef2reef.com/threads/nitrite-toxicity.402708/post-4805029
You do want at least testable amounts of nitrate and phosphate though
I hope that helps!
https://www.reef2reef.com/threads/nitrite-toxicity.402708/post-4805029
You do want at least testable amounts of nitrate and phosphate though

I hope that helps!
