Interesting Observation

[Aquattro]

Now, I know causation does not equal correlation(or vice versa), but this..as I've mentioned recently, I've been fighting high NO3 (>30ppm) regardless of what I do. While carbon dosing.
After thinking about what I've done, I realized that I added a UV unit just before they started to climb. Hmm. So while setting up biopellets, I decided to take it offline. Within 4 weeks, NO3 is now below 2ppm. Sure, I added pellets, but that's essentially solid vodka, chemically speaking.

I can't find any other posts about this, but that's my story, I'm sticking to it!