Sorry for your losses Jim. Not much comfort, but many of us have had an incident like that, so your not alone.
Did you have any clam losses?
When I moved a few years ago, I had a similar incedent. Never was able to pin down the cause. Best guess was to much 2-part epoxy for the sps corals or just the moving stress on the clams. They went first and all that meat soon took out all the sps and even a couple fish.
