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That's great!Compare the two and tell me if HR is worth it? What are your thoughts? LR Nitrate test is undiluted since I was below 5ppm.
4.8 +-2.0ppm (HR) conveys very different info than 4.73 +-0.25ppm (LR)
If I just wanted NO3 in the 5-10 range, I'd 100% rather use the HR for that. If I were trying to manage 2ppm, then I think only the LR is appropriate to the job.
(Btw, these pics also show the HR forms a slightly more coppery color than the hot pink of the hanna LR and red sea)