Dave, sorry & congrats, I've had this happen to me when I lived in Va Beach, a hurricane wiped out power for 2 weeks, the live rock recovers quickly, I wouldn't do anything to it, just a 50% water change & a few weeks cure time & your back in business buddy, it sucks to lose all your corals, I know & it's not even the money that matters. I know it doesn't help now, but the generator is your savior, after my catastrophe I vowed to never be without back up again, I haven't had to use it for many years, but I keep it maintained & ready for any situation, most likey an ice storm here in Pittsburgh. Good luck to you sir & congrats on your engagement again!