I just received notice from my electric company that there will be a 9 hour power outage scheduled for my address next week. I have 8 tanks all over my house (2 10-gal, 3 20-gal, 1 75-gal, and 2 125-gal) that run on 5 HOB filters and 4 canister filters. Would it be best to get some battery powered air pumps to run sponge filters? Will my BB survive the outage? I'm fairly new to the hobby so I want to try to prepare the best I can. I appreciate any advice. Thanks in advance!