I'm petrified I'm going to have a power loss that will endanger my fish. I have a battery-powered air stone for each, but that doesn't seem like enough. I'm looking at gas and diesel-powered generators and extension cords just to the tanks (who needs lights?). It seems somewhat complicated to me (I'm very unmechanical). I can't seem to find a battery back-up (not temporary battery) but something that would last a bit and be able to be recharged. Any thoughts out there in handling power outages?