Hi
I have a 3500L pond with a mix of 8 fish ( koi, goldfish and orfe as well as a nice 14" golden tench. Well I had until today when I found the tench dead. I noticed he was not feeding the past two days but he never had as Bigbelly an appetite as the koi and gold fish so I was wasn't overly alarmed.
When I removed him I saw he has multiple large red lesion / marks on both sides of his body (see pics). These lesions were not noticeable yesterday.
Any ideas on what these lesions are and how he would have died so suddenly would be greatly appreciated.
I have a 3500L pond with a mix of 8 fish ( koi, goldfish and orfe as well as a nice 14" golden tench. Well I had until today when I found the tench dead. I noticed he was not feeding the past two days but he never had as Bigbelly an appetite as the koi and gold fish so I was wasn't overly alarmed.
When I removed him I saw he has multiple large red lesion / marks on both sides of his body (see pics). These lesions were not noticeable yesterday.
Any ideas on what these lesions are and how he would have died so suddenly would be greatly appreciated.
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