Very sad news . .. I came home yesterday (Thursday night) to find a majority of the fish dead on the bottom.

There was a power outage in my neighborhood yesterday during the day, not sure for how long, but my mother (who lives caddy corner from me) says it was at least the 3 to 4 hours. Amongst those that are now resting in peace are: Orange Shoulder Tang, 3 Anthias, Saddleback Clown, and Tomini Tang. The rabbitfish seems a bit stressed, but seems to be eating well. The mystery wrasse, scooter blenny, purple firefish, lawnmower, banghai and chromises are all doing well and unaffected.
From what I can tell, there are no losses to the corals or inverts.
I performed a battery of tests and all parameters are normal.