Thanks all.
After mixing water, doing water changes, and picking shiny floating bits from the water for 12 hours, it looks like 100% loss on Acros and most of my montis. Torches and frogspawn have all their color and flesh, but I know they can rapidly decline without notice. Chalices could go either way, both are showing skeleton points through the flesh. Zoa's and mushrooms all made it to different tanks.
All fish have survived amazingly and we transferred the two clowns and goby to the mushroom tank.
Since my entire frag tank is unaffected, I'm going to use the swap next week as a restart opportunity. While cleaning the tank, I took out all the rock and my new stack looks 100x better and inspired me to restart a collection.