Hello; A few years ago the power was off for three days during winter. I had gone to low density stocking some time before and feel this was a reason no fish were lost. I managed to kep the house in the low 50's F. There were no working filters or bubblers during the outage. The tank temps got low and the fish survived that. I did nothing for the tanks such as water changes or battery air pumps. I did not feed during the outage.
I still follow a low stocking density in my tanks.
I still follow a low stocking density in my tanks.