This koi is in my koi pond. He was the worst affected. Before he was in the pond he was in my tank in the house and was a healthy normal fish. he went into the pond last April and around October i noticed he had this funny business on him so i took him out. I had him in this silly little tank for about two months as i believed it to be carp pox from reading different books. I tried using whitespot (King Brittish) which has malachite green in it but it did not help. I also tried methalane blue which had no effect. I tried fungus remover, salt baths and anti slime. None of these seemed to make a difference. I have several Kopi with this condition and drained the pond and set up a makeshif set up at the bottom of the garden to isolate the ones showing signs. I planned to cure them before reintroduction to the real pond before the onset of winter. Thios never happened so i had no choice but to put them back in the real pond which is deep enough to hold them over the winter. The mad thing is i have not lost any fish at all but they look awful. This fish actually improved a lot from what he looks like now but he still has it. I had to put him back in the pond as he was looking really skinny and i did not have the tanks or filters etc. to maintain a large fish like this. i feared he would only end up dieing so he had to take his chances going back into the pond during the winter.
These growths look a bit like grey slimy lumps. I have taken a fish out and tried to physically remove them using a piece of toilet role and then treat with malachite green but found them not to be slimey at all but more soilid. Has anyone any more ideas? I will try supply more pictures of better quality.
