For future you might consider to get some type of ac/dc air pump that will automatically switch to back-up if the power goes out. We have a decent number of outages here, esp. during monsoon season, and these make my life so much easier, esp. if I'm not at home when power goes out. I have them on all of my tanks, hooked up to big sponge filters and/or air stones. They cost more and are bigger than comparable flow regular pumps, but worth it imho.