So, after one week, the tank is still doing extremely well. Have to add the NPX pellets & ATO today, as well as finish the side plywood/door panels.
Haven't added any more fish yet, but a few more corals now call the 220g home.
Since we've decided to stick with the 2 lights instead of 3 over this tank (love the look of contrasting light/shadows/light), that's going to hopefully help curb my obsession with adding more & more corals into this "fish" tank.