My 12 Volt 18 watt air pump came today. I will get a 12 relay and a 12v wall wart power supply.
The 12V power supply will keep the air pump from running. When power goes out the 12v relay will close and the air pump will turn on to keep the fish alive when the power comes back on the pump will shut off.
I will connect the 12 battery to a solar panel to keep it charged up and ready just in case we lose power. I don't want to kill the fish if the power goes out.
