Thanks for the sound advice, Cindy (
Carolina Girl).
It's so very helpful to have a certified Koi Health Advisor step in on these sick fish/pond threads!
Jo . . .
Wishing you the best as you try to get this situation under control.
Your profile doesn't list your location, but you should contact your local AKCA club (@
AKCA Clubs). They might have a KHA onboard and (relatively) close by that could offer you some personal assistance?