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

[gobytron]

IMO
You dont need to go to those lengths as long as you have a generator and know that the power outage is coming.

salt settles when uncirculated, so it's not that your water loses so mch oxygen, it's that the salt settles on the bottom, killing the oxygen there and leaving a very oxygenated, low salinity layer on top.

My house loses power a few times a year at least and all I do is run a heater on each of my tanks and a Koralia 1 in each off of a small, 150$ generator.

Have never lost a fish on power outages, longest was almost 30 hours winter before last.

Go ahead and run back and forth from the barbecue, but its unneccesary if you have a small generator.