Last evening when I went out to feed the koi, I noticed that "Jack", a 15" doitsu sanke, was "bent" as he swam to eat. At first I thought it was the water playing a trick on my eyes, but that's not the case. As he swims to his left, his body bends into an "L" shape and his movements are not fluid and smooth.
He ate this morning, but he still "hooks" when turning to his left. If he swims straight forward with any speed, it appears he struggles.
From what I've learned, these symptons are usually the result of and electrical leak; be it from an electrical issue within the pond, or the result of severe thunderstorms. It is my understanding that there is nothing that can be done to help the koi once stricken.
I believe the severe thunderstorms we've had all week are to blame. He is the only koi showing this sympton.
Has anyone ever experienced this with one of their koi? What did you do? Is the koi suffering? Will he be able to eat enough to maintian his health?
Any comments as to what I should do would be greatly appreciated.