Makes sense. I started a thread over in the chemistry forum with a poll. Would you consider voting and providing feedback, pics, recommendations.
edited out
www.reef2reef.com
I for one am confused with this, because you are absolutely right. A low test with macros and algae on the glass means you have nitrate. Yet when the level really does get to 0 it seems to cause problems in some tanks. Dead macros, Dino’s, Corals not doing well. Not sure it has to do with the nitrate itself, or something else.