This could have been worst. My protein skimmer hangs on the side of my sump. Last night at 230 in the morning i woke up to a zapping sound then an explosion.My protein skimmer started to drip water , but the worst part it was dripping on my power strip. I woke up to smoke through out the house then ran and stripped all the cables out of the wall.
My wall was still hot and burnt but nothing major happened only that my heater was the thing that exploded,"not in the tank but the cord connection".
Now going to buy one since I came from work .