Koi-Lo wrote:
"BoyPete" wrote in message
...
Over the last 24 hours, my two Yellow Ogon have turned a darkish
grey, except their tails.
We had storms and torrential rain yesterday, and water temp had
dropped 4 degrees in that time.
Could that be the problem? Will it reverse?? Other ideas??
======================
I have yellow Ogon and never saw this happen after a heavy rain and
temperature drop. I never saw it happen in their fry either. My
biggest koi, a female 7 or 8 years old, is a yellow Ogon. Her color
never changes. Please post back if you discover what caused the
change of color. I'm curious.......

I'm only a few months into pond/fish keeping. I'm not keen on netting them
for a better look, in case the stress is detrimental. All the fish were slow
to eat tonight............never known that before. I'll test the water
tomorrow evening (I'm in London UK).
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ßôyþëtë