As I have a wine, relax Friday night, I'm delving into this thread. At my peril lol. My tank is 25+ years old 90 gal, but I am a simple reefer I don't run a skimmer , sump, or cannister, or dose,, lots of softies that have been with me entire time, and 3 of my fish are on year 18 including Yellow Tang, so I guess doing something right? Anyway your full tank shot, its no great shakes but its my slice of ocean ...happy reefing all.