Hi Glenn,
congratulations for your superb way of reefkeeping!
As my tank was almost collapsing i' m right now at that stage at which u have eben a few years ago. At the moment i just leave my tank, and keep it with minimum effort just alive.... I lost too much corals and was very near of quiting the hobby.
Been there done that..
I feel you.....
www.DSRreefing.com/history