There are tons of fish to consider, but as a new fish in a new tank that probably could use an algae controller or another...is the rock blenny. May not be a pretty fish, but they are very characteristic and do a good job
Don't introduce too many at once. One or two fish at a time and wait at least two weeks in between introductions. This time will allow the bio to catch up and allow the fish to become comfortable in their new home.
If you don't have a population of inverts yet, get some of them first...reef hermits, shrimp, snails, feather dusters. Skunk cleaners will prove helpful for when the fish are introduced. You can get coral. It's easy to populate with inverts because they don't take up much of the bio load. It's when you start introducing fish is when you really need to be careful with ammonia.
do you have anything in there now?
We, as a people, know so much more about outer space than we do about our own oceans. This lack of knowledge can very well spell the dangers that lay in wait for us.
The oceans surely would swallow us before a rock comes down to smite the planet of it's life.