Dead koi
One of my Koi has died ,it became lethargic I put it into isolation with
some treatment for fungal bacterial ect diseases and then returned to main
pond.After a few days it died there was no external indication of any
problems other than its behaviour.I have tested the water and its OK. I am
very new to keeping fish and I am worried that the other fish will be
affected any advice would be appreciated.
|