MY advice would be to go very, very slow. The first time I tried the Zeo method, I believe I changed my water parameters too rapidly and had some of my SPS go into STN/RTN. With more experience and patience, I am doing it again with excellent results. Read the manuals, do not rush the system, follow the "rules" of heavy skimming, no GFO, no UV, and you should be happy with it.