Copepods, they're beneficial to the tank and a good food source for fish and coral
They are of no harm to any system, though under normal situations they don't populate the tank as fish will consume them quicker than they can reproduce.
You want to see ammonia levels hit 0 after 24 hours of providing an ammonia source.
When did you add the ammonia? You want 24 hours to make the 2 ppm of ammonia to 0.
You need to add more ammonia. 24 hours for it to hit 0 means cycle done. A week and a half ago is like only letting you eat once a week.
I feel that this is the easiest method of dosing ammonia. That way, as it is decomposing it is giving a constant ammonia source. With no need to dose ammonia, once you test 0 ammonia and 0 nitrite you are done. Then comes water changes to bring down the nitrates and time to add a fish.
A raw shrimp. Toss it into some old pantyhose, tie it off, and toss it into the tank. This will give you some easy clean up. When you read no ammonia or nitrite levels, pitch it.