Hi, My name is Rich and I have had aquariums for some time now, I love fish. I have had some monster style fish in the past but have never gone to the extremes im at now. I just recently started a new aquarium up, it has (all under 6in currently) 1 peacock bass, 1redtail catfish, 1 wild oscar, 1 red belly pacu, and 2 butterfly koi......I just today lost my sunfish...sad moment in my tank. Im in the US Army and am about to deploy again....I was wondering if anyone out there can give me some ideas about a backup power source in case the power goes out that will last at least 2 days if needed to.