Last night our breaker tripped (the one that houses the 100 gallon tank); I didn't think much about it, so I flipped it back on; today, while i was pouring water in the tank, the breaker tripped again! I again flipped it back on, then tripped AGAIN! I called the electrician, and he's coming tomorrow, but upon further inspection ( I ran an extension cord to tank to keep everything going, and I noticed a spark from my sump--I looked better, plugging and unplugging stuff, and figured out it was my heater! I unplugged it and took it out and it was like busted! It was a hydor theo or something like that-good thing breaker tripped,I guess. Should I do anything? the tank ran with the heater busted for about 18 hours. It's a 100 gallon FOWLR.