I have a 125 which has been set-up for a year with SPS, LPS, leathers, clam, zoos, mushrooms, fish, etc. When doing this it was certainly an upgrade from what I was doing. I tried to incorporate my 17 years of saltwater and 7 years of reef keeping experience into this tank. I do seem to be rethinking some areas and with the four power heads installed for water movement and the control device for timing I was wondering about suggested sequencing. I could get more involved, but that depends on what answer/ questions I'm posed with. Thanks