Great news! Don't let your chlorine guard down yet! I'd keep it up at 10 or so until the water clears up really nicely. You aren't out of the woods yet. Can you post up your total and combined chlorine numbers? That will show if you are left with just cleaning up the dead gunk or if the beasties are still trying to multiply. Until you have constent CC of zero for a few readings I would keep the chlorine up there.