To help you out a little bit, 5 drops of ammonia per every 10 gallons of water would give you an ammonia level of 5ppm so you can gauge off of that. I am willing to bet my shirt that if everything you are saying is true, your tank is cycled
This saltwater thing is just like freshwater tanks in that a person can almost instantly clone a tank from another. Using fully cured live rock that either is shipped to your tank in water or is out of water for a very minimal time (less than an hour at least, better though if less time is needed), will almost instantly give you a tank that is fish ready provided there is enough live rock...
For example, my 90 gallon tank had 80 pounds of cured live rock, 45 pounds base rock, and 80 pounds of live sand in it on day 1. The live rock and half of the live sand came from a tank at a LFS about 20 minutes away from my house and was in my tank in less than half an hour. Since the tank was about 3/4 full of saltwater and heated, the live rock had almost no die back and I saw a small ammonia spike that lasted less than a day or two. I waited, like you, for about two weeks and then tested out this seemingly impossible situation with two damsels. I have been keeping fish in it ever since.
I also do not use one peice of mechanical filtration other than a skimmer and rely solely on natural filtration from the live rock and live sand. My tank almost always has perfect water parameters and the biggest 'problem' I have had is with higher amounts of Phosphates in the couple of days before my water change.
Maybe you should try to test things out with a very hardy fish. In my area, clownfish are about 15 dollars a pop, so maybe it would be best to go with another type of damsel like a domino damsel. Green Chromis are also damsels, but not nearly as hearty as dominos or blue damsels/yellow tailed blue damsels. Just keep in mind that you may have some trouble catching them in the future when you are ready to get the fish that you really want. My four damsels (two domino, two yellow tailed blue), when I tried to catch them, took me to school pretty quickly but I did get them in the end but it took three nets and my wife and I to do it! :thud: