Eat him.

"Greg" wrote in message
s.com...
I have a pond with Koi and goldfish who lived happily together for a few
years.
Today however all the fish apart from the large Koi ganged up on
another goldfish and seemed to be trying to push it out of the water.
They were quite ferocious in their attempts.
My wife netted the fish and put into a seperate pool after which all
seemed to cool down.
The fish appears to be unharmed and has no visible signs of disease, so
what do I do now?
--
Greg
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