I don't know why this hasn't been mentioned yet, but you can pick up a battery powered air pump for around $15 from a LFS
that sells Hagen products. I have one, and thank goodness I haven't had to use it yet, but now looking at the box, there is a website on it (http://www.hagen.com
) - the product number is #A-790. It requires 2 D-size batteries. Sorry I wasn't here to answer you earlier, but since airation is one of the most important things to maintain, I thought you might like to know for future reference. You can find a Hagen LFS
I have a UPS, but before I was able to get one, I had this airpump for peace of mind for when my power goes out, which is constantly during the winter.