That reminds me I was going to look that up!
This is the product I tried and worked great for me (https://www.marinedepot.com/AZ_NO3_Nitrate_Eliminator_240mL_Specialty_Additives_Supplements-AZ_NO3-CP2151-FIADSA-vi.html?utm_source=mdcsegooglebase2&utm_medium=cse&utm_campaign=mdcsegooglebase2&utm_content=CMFSSWSKU-CP2151&gclid=EAIaIQobChMIn9aAv9LJ2QIVDpFpCh01TwVGEAQYBCABEgLHCfD_BwE)
Was running about 20PPM (primarily due to a large algae die-off I believe), started to try this and by the time I ramped up to the recommended dosage nitrates were already on their way down. Ramped back down and have been at less than 0.25 ever since (at least a couple of months now). No noticeable side effects that I saw in my tank (primarily SPS with some LPS, fish, inverts).
Hey @Oregonic let me know if you have any questions.