Yes...just leave it alone. Sometimes it will get even worse...looks like someone spilled milk in it! BUT the important thing to remember is that if you mess with it, clean the filter or do a water change...you'll probably just make it worse. Let it sit for awhile.
Did you use biospira or cycle the tank first? Thats pretty quick to set up a tank and have that big of a bioload on the tank if you didn't... (Sorry I didn't read any of your other posts yet if you already talked about this)