Thank you all for the replies and support. I am a complete germophobe so the idea of my kids or I touching that water and not being able to wash our hands gives me anxiety. Plus they were sick already and my baby wouldn't let me put her down. Just the perfect storm. Our grocery stores didn't even have power until today!
It is heavily planted, but the temp in the house was anywhere from 38-45 every day but today.
The power is back on and I am happy to report that the betta, dwarf gourami, my female endlers, the platies and a few otos made it. The RCS in the 5g look ok too. The cories, harlequin rasboras, hatchets, micro rasboras, male endlers, bn pleco, hill stream loach (pleco) and ghost shrimp went to fishy heaven. Rip sweet guys.
Will be investing in some emergency battery pumps and also a generator for future crisis.
Off to do some damage control in the tank. And then cry myself to sleep.