Was wondering if anyone knows what happened to my koi...he had sunken in eyes coming into this spring then died..very sad.
Sorry introduced myself in How often do u clean your pond?
New to here, so saying helloo to all ponders!
Sorry I don't know what killed your fish.
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Hope to find an answer...
There is no way to know what killed the fish now that it's gone. There are a couple of things that cause sunken eyes though. Koi Herpes virus does, but so does the parasite Costia. did only the one koi die? Did you get any new fish prior to this one dying?
Yes, only the one died koi died and no, I didnt get any new fish.