I agree with @Thales and @Rick.45cal with one comment. Your choice of food. Dry pellets (high protein content) and Nori will rise your input nitrogen and for the pellets even the phosphorus more than necessary - IMO. Use of some coral foods like reef roid will rise your Phosphorus - could be both good and "bad". As have been said before - the figures is not so important - the stability is more important-
Sincerely Lasse
Sincerely Lasse