Last winter, when i only had 2 oscars and some other cichlids, the power went out for about 13 hours. It happened to be the coldest day of the year. My house got down to 40 degrees. I moved the oscars into a 10 gallon tank and carried it out to the fireplace to keep it at 65 degrees. Imagine 2 oscars 8 inches each in a 10 gallon! I woke up with them still alive like nothin happened but found 4 dead cichlids in my room that i couldnt move. I was wondering what some people do in these situations cuz its about that time of year again. I know about generators but cant afford one. Lookin for an easy way to keep warmth/airietion.