Hi - first, welcome to FishLore!
Second,
live rock and a
protein skimmer and some powerheads for water movement will make your setup much better. If you get enough live rock (at least 1 pound per gallon) you don't need to use fish at all to cycle... The live rock will handle the
bio-load. After you get the live rock you monitor ammonia, nitrite and
nitrate with your test kits (like you're already doing). If you get rock that has been in a dealer's tanks for a few weeks already you might not see a cycle at all. Check out the
saltwater aquarium guide for some helpful articles too.