I just setup my first reef tank, which is a new redsea 350 about 5 weeks ago. The last time I checked my cycle was 5/26 and ammonia was 0 and nitrites were somewhere between 0 and 0.25. I got so busy and was not able to check the water again until today, which showed all ammonia, nitrites, and nitrates at 0. Did I wait to long to put fish in? How do I know if the bacteria is still alive? Appreciate any advise.