I'm going to chime in and say they'll be okay, but you might need to do small water changes a couple times a day. It really depends on tank size and stock load as well. The aerator will help a lot as well.
My electricity went off for a few hours last week and in just a couple hours my fish were looking fairly stressed. It was emergency water changes for everybody. I don't envy your situation, I hope everything turns out well for you!
I agree with the ABOVE.
But this here just goes to SHOW always have BACKUPS....
A Battery Backup Pump incase your Electric goes out.
And a Backup to your Heating incase it goes out.
The Nearest Store to me like you is 50 - 60 Miles away, and if Something Breaks, I'm kinda Messed because I most likly ain't going to be able to get to a Store right away, so i always am Set.
If the Electric goes out: I have my Battery Backup.
If My Heater breaks: I've got another one of the same Wattage.
If my AirPump Breaks: I've got another one.
You may say What if the power Goes out and you need your Heater? What Then?
Well your gonna Laugh, But I've got a Couple of sets of Hunting Long Underwear that Have small Heaters in them that run off of 2 D Cell Batteries, that i have modified to fit my Tank, If the Electric Goes out, I wrap them Around my Tank, Pin them together, Plug'em Up and they Keep my tank at a pretty constant temp, with very little loss, for a few hours until the Power comes back up.
I used them one night during the winter, when the Temp was 9 degrees outside, they ran for almost 6 hours and I only lost approx 1/2 degree F.
But with the proper Care i expect they will be just fine.
