3) Perform filter maintenance, lightly rinse media/media chamber and float media in tank.
A very important thing to know is that the debris (organic matter)
and the bio-mass in your filters can die and turn toxic in a very short time period.
This can kill your fish if you let the filters flush this into the tank when power comes back,
filter media should be removed and floated in the tank,
this will preserve your bio-bacteria and they will continue to convert waste.
You may improve the limited bio filtration by placing a airstone beneath the media to induce circulation thru the media...
BPAP's can run sponge filters.
The filters should be either unplugged or primed to restart when the power returns.
About this step. I currently have a 75 gallon in my bedroom with two Emperor 400 HOB filters, an Ehiem Canister Filter and a 900GPH Air-Circulator Pump. At night (between the hours of 1am to 3pm the next day) I have my HOB filters set to turn OFF, so to reduce the noise when sleeping (this tank is literally right next to my bed, I can reach over and touch it). The EHIEM and the aircirculator both run during this time.... do you think this is a potentially dangerous choice? Ive really enjoyed the quietness of it as I've only been running the system this way for a few weeks.
The tank only houses two 6yr+ adult Silver Dollars and a handfull of clown loaches..