If you're reading the salifert nitrate test from the side and the color matches 20ppm, then the actual value is 2ppm. I'm not sure if the other salifert tests also have the same side vs top value relationship as I only use their nitrate test. I really disagree with an earlier poster about API tests---in my opinion, they are complete junk and would recommend throwing them out. Thanks for the picture of your setup...it looks very nice. Only thing I'd recommend is putting your chiller outside of the cabinet. I know it looks better inside and that your wife probably wants it hidden, but it'll get pretty hot inside the cabinet and not be able to do its job well. Regarding cycling, you should follow the methods referenced by
@Azedenkae or what's shown on the Bulk Reef Supply video (). Once your ammonia is quickly being oxidized, then I'd add a cheap, hardy fish like a damsel and keep testing ammonia, nitrite, and nitrate at least once a day for a week. Just make sure you choose a fish that you'll want to keep long term unless you can borrow or rent one from a local store. Don't add any inverts or corals at this stage because your fish might have a disease that will need medication which isn't safe for other livestock. Check out the disease and quarantine guides on this site regarding that. Good luck and have fun!