"Ken Kose" wrote

Had a freak hail storm on Saturday in Chicago. There was about a1/2
inch of hail (1/4in size) on my deck. The size of the pond is
10'x4'x3'D. I lost 7 goldfish (about 7" in length). What happened? Did
the hail cool the water too quickly? This never happened before.


Probably thermal shock as you suggest, but a few questions for you...
1. Were they the biggest fish in the pond?
2. Was it hot and sultry, humid?
3. Have you got lots of plants in the pond, especially oxygenating plants.

-- Regards
Bob Hobden
W.of London. UK