Hurricane Milton is hitting us hard and my power has gone out. I do have some battery powered bubblers but can anyone advise how long I should keep them on? Continuously or every once in a while to conserve battery? If so how long can they go without the bubblers on.. very concerned about my fishes and corals and not knowing how long the power will be out. Thank you for your help!!
The most important thing is water movement to enable gas exchange.
There are several ways to accomplish this - bubblers are one option. Another is to periodically remove some water with a large glass or pitcher and slowly pour it back in from as high as possible (I mean, not from the ceiling, but raise your arm high, lol).
Depending on the size of your tank, I'd try to do this 3-4 times twice an hour when the bubblers aren't on, and/or every hour or so if the air pumps are running.
Make sure the airstones are as deep as possible so as much of the space around them gets oxygenated. Watch your fish and if they seem to be gasping, increase your efforts.
The other issue that can be a problem is the temp. If you feel the tank temp is getting too hot, you can float some ice (in double baggies to prevent the melted use from getting into the tank).
I'm in Houston and have some water bottles filled with rodi in my freezer for this purpose.
Good luck and remember, your life is more important than the tank so if you need to leave, please do... Stay safe and keep us posted on the conditions.