| The Showa is roughly 2-4 years old -- I am not sure, since I bought it from a friend last year. Yes, I can only see it in beni of the Showa near the upper fin. I inspected the fish very closely and could not find it anywhere else.
I got the fish last year, and this is the first time that I noticed the problem. I netted all the fish in the begining of winter and did not notice any problems. However, now that the weather is warming up I am seeing the issue. |