I have a planned power outage in my suburb for one day this week from 9am - 2pm while country energy works on some stuff. I don't have a generator or any battery operated air pumps. I have a 6ft,4ft and 2.5ft tank in the shed and a 4ft inside. I was just wondering if this will be a problem?, is there anything I should do to prepare? Even though I will be at work! Missus should be home but. Any advise would be appreciated.