Hi, I have 15 koi, have had them for years with very little issues. noticed two fish have growth on their tail fins, white waxy colour with some bleeding aswell. What can this be?...I have a pic aswell. Thanks...ok does not want to attach the picture. if someone can give me an e mail address i will send.

Hi,
This could be the CYPRINID HERPES VIRUS 1 (CHV-1) also known as Carp Pox or
Papillomas.

See: http://southafricankoi.11.forumer.com/viewtopic.php?t=191

Looks like Papiloma or severe Carp pox, but finrot also started.

I have suggested Acriflavine or Malachite Green for the finrot and salt and topical treatment.

Schalk has already treated with a broad spectrum Fungus/bacteria treatment that contains Acriflavine.

That's papiloma but the area was openend up & got infected and seems to be in the early stages of finrot because of that.

Paul's treatment advice is good. What I also like as a topical treatment is propolis spray.

Thanks all for the help, I have placed the fish in holding tank waith salt and Acriflavine, hold thumbs all will be ok....will keep you posted!!

Hi.

Did you get the infection to clear up?

I had one that had pox and I trimed it off but it grew back. It never got infected and none of the other koi ever got it. I eventually euthanized it. I had to thin out the herd and I couldn't sell it or keep it.

Clove Oil is good to put them to sleep.

Sometimes you have to make the hard decisions.

Gigi