[zoeandoscar]

Hello!

We had to euthanize one of our fish last week as it was showing signs of disease and its eyes went white, making it blind.

My father was always the one who dealt with all fish matters however he recently passed in an accident and me and my mum do not really have a clue. I was wondering if anyone could help me, I've attached photos of the fish and as you can see it was losing some of its scales and had big welts in places.

All the other fish seem fine (apart from one with raised scales and a few with growths)

Can anyone help me identify what is wrong as I would hate for the others to get sick.

Thank you
Zoe

[markf1fan]

that fish is in a bad way. this should have been treat months ago before it got to this stage. it looks like a very bad ulcer which should be treated soon as it is seen or it may just eat away at the skin.

[Bandit6]

Hi Zoe sorry to hear about your dad,the Koi has died due to an ulcer this could have been an injury that became infected or a bacterial infection it would have been like this for some time.the one with scales sticking out is it all over the fish or localized ?.Where are you located as a forum member may be able to take a look.