I don't think anyone else has said this but I feel this is one of the more important investments for a reef tank...(especially one that has thousands of dollars of livestock). I would suggest getting a UPS modifying it and adding Deep Cycle batteries so that it can last for 12 hours or so... just to run your pump and heaters so you don't lose your entire tank... the entire thing should cost less then $500 and it protects you from lots of different power shortage issues... including making sure that the pump is always getting constant "clean" power... and that helps with extending the life of the pump too.
Just my 2 cents.
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