thats terrible news, seems like there were a few power problems last night.. our power went out for three hours and i was worried about the salt tank.
Have you go your powerheads running, its important to get your oxygen levels up by keeping your water flow going, will also help with your keeping your pH at a normal range. Hope your other fish make it. test to see if you've got any detectable ammonia nad if you've got it try and mix up some replacement salt water for a water change if necessary.