Well, I have no idea how, but it looks like I may not have lost as many fish as first though. Both my angels are almost back to normal, my rubberlip pleco was moving around last night when I went to bed (I can't see him this morning, but its pretty dark in the tank). Even my female GBR has out of nowhere started to make a recovery, I had not seen her at all, and feared the worst, last night I saw her laying on the substrate, when I went to bed she was up off the substrate, still acting badly, but up and moving, this morning she is still up and moving. Hoping she recovers in a similar fashion to the angels.
Not sure yet but it may look like the only fish I lose in my main tank are the rummy nose tetras, and possibly a neon. A female BN from my 29G and my sons betta and 2 otos in his 10G.
Never thought I would hear myself say it, but I hope it does not snow today / tomorrow. As soon as I have cleared the house a little, I need to give them a large water change and remove any dead fish in case of power outages again with this next storm.