Saltwater fish cooked. HELP!!!?

I have a damsel and a chocolate chip starfish. I am brand new to salt water fish. I have had the tank set up for 1 month. The starfish was in there for 2 weeks and was happy and healthy. Then I put the damsel in 2 days ago. He was also happy. Today the starfish was 'wilted', with his arms hanging down. I checked the water and it was way to cold, I guess the stupid heater broke. So I put a heater by my tank, which was a big mistake! 0_0 An hour later I check the temperature and it was 100 degrees!!!! NOOOOOO!!!!!! The starfish was all curled up and the damsel is barely alive. I just kept pouring in little bits of cool premade ocean water solution. What more can I do to help the poor little guys live through my wretched mistake?