 Help! Sick Koi?
Hi, hope someone can help me figure out what's up with a couple of Koi I have. I have about half a dozen, all seem fine apart from two (please see pics).
One is a small green Japanase Koi (so I'm told) which I've had about eight months. About a month ago he developed a light grey patch with blackish edges. Doesn't seem to be clearing up. The other is a larger silver Koi which last week developed a pinkish cresent on the top. I've had it for a few years and he's not had it before.
The pond is about a year old, with UV & filter & I replace some of the water regularly; it looks clear anyway. All fish, including these two, are quite lively and seem healthy.
I hear the wrong treatment is worse than none; could someone advise me what might be up and how to treat?
Thanks, ...Leo |