tank issue

I was gone last week to Des Moines to coach state basketball.  My brother was stopping in for me to feed my fish while I was gone.  He last stopped Thursday AM on his way down to DM for our games Thursday and Friday. 
When I get home it is too quiet.  I immediately run downstairs and see there are no pumps running in the tank and there is no electricity in the living room.  I run to the basement and find the breaker tripped.  I turned in back on and everything was up and running again and I was going through the tank for losses and to check electrical equipment on the tank.  About an hour and a half later the breaker trips again.  I go to flip it back on and it will not stay on.  I unplugged all tank equipment and the breaker stayed on. 
I went through the equipment again and found that I had missed a heater that had blown up in the back of the sump.  I have no idea how long electricity was out on the tank or what happened specifically with the heater.  I am wondering if something got stuck on and it was running too hot due to losses I sustained.  I immediately had water mixing for a large water change and need to do at least one more to get parameters back in line. 
I am reeling from the experience and the loss, but realize how lucky I am.  I was digging around in the tank with a bad heater and am lucky I did not get electrocuted.  Luckily, all fish are accounted for and still doing fine.  Both my maroon and blue starfish are dead.  I haven't gone through what I lost specifically yet, but know that I lost a couple of chalices and acans.  Roughly half of my zoa population got taken out, the more established colonies fared much better than some of my most recent additions.  I lost my prize score from MACNA, a 5 color wellsophyllia that was half the size of a softball.
The experience has not discouraged me in the hobby.  There are horror stories galore about what people have lost from a mishap, and I am extremely fortunate that everything was not a total loss.