As a fellow Floridian and a direct impact hurricane Charlie survivor ( no power for over three weeks ) no fresh water for about that long also. Every home in Florida needs a generator , doesn't need to run the whole house, even a small one you would take camping is fine. Even if you don't have a tank , its a night and day difference when you are sitting in a house with no A/C and not even a fan to cool off even a little bit. Survival of a reef tank for extended outages with just battery operated air stones is grim . A power inverter from a car is an option for short time, but let me tell you how difficult it is to get gas. Just don't think you are going to run up to the nearest gas station and grab some. The lines will be long and as you sit there waiting and everybody is getting impatient and tempers are flaring you hope that the tanks don't run dry before its your turn. Yes gas stations run empty in these situations. So traveling to a less impacted area to just get gas might be your only option and with that you need gas to even get there. My suggestion is a generator if you can find one (everyone waits till they need one then all stores sell out for miles) been there done that! GAS CANS ( you really cant have enough ) FILL them all before the storm is even close , you will thank me later. Water !!!! You need it to survive , plus count how many times a day you interact with water , from brushing your teeth to flushing a toilet . You need to fill everything up with water , bath tub's any buckets /bins anything that can hold it. I f you have a pool that's a huge bonus. Buy as much drinking water as you can. Remember if you don't have power stores don't either so debit cards are useless, take out all your cash .I would make up a large amount of fresh sea water in case you need to do a huge water change if things take a turn for the worst. Best of luck and your safety is more important then keeping a tank alive.