On no! 6hr power outage today. What to do?

[amy]

I just found out that I will lose all power to my house between 9am and 3pm. What can I do for my fish and corals? I have a small generator that will allow me to run a very small fan and a air bubbled for maybe 2 hrs. I know this isn't enough.
A few months back I learned a hard lesson turning my tank off to feed my corals. I left it off all night and woke up to 11 fish dead. The timewas approx 6 hrs. This outage is for 6 hours. What can I do??