waterfall was supercooling the water a bit making it colder in the deep
end. The first fish that died a month ago though froze in the deep end.

Could be. Not sure of your fish load situation, but maybe turning the falls
off and putting the deicer in the pond would be worth a try?

Sorry for your loss.

Yea, and it would be the one with one of the best patterns, but considering
how hard I worked to recover the 3 others last year, I'm almost
relieved.... but that's not to say I get to start out the spring clean,
does it? s I can only hope.

Sorry your work situation is so awful. That's a bummer. ~ jan