In the filter and media-after 6 hours of no oxygen the good bacteria start to die and can become toxic-the water in the filters need to be dumped out and cleaned and expect a mini-cycle and need of some daily water changes until things stabilize
During bad weather and the electric is out and it may be out for awhile-unplug everything-lights, filter, heaters etc....stop all feeding, in the winter you can cover the tank to try and hold in the heat the best you can, you can fill bottles with hot water and place in the tanks after you remove some water for the off set of the weight of the bottle
All you can do most of the time is hope and pray that they survive and the electric comes back on sooner than later.
Having the battery operated pumps are a great idea
I don't know about you but when my electric goes out I also don't have running water because I have a well......
The less disturbance the better in my experience and I have loss of electric at least two times a year from either tornado or ice storms and some last up to 10 days of no electric or water...so much fun......
Last edited by Oldfishlady; 06-29-2010 at 06:40 PM.