Water Gardening: Questioins for flkoifarm, 1 by

wrote:
I'm pretty sure that it's fungus that is secondary to the finrot as I've seen Ick several times and this looks very different and is localized except for the spot on the fin. You can see the stuff I'm talking about Also, the koi has had these large white patches next to the fin that was injured for several months now and no one else in the pond has it. I had to go to the store for something else today so I picked up an antifungal that is the same brand as the erythromycin I've been using. I'm finished treating with the antibiotic already and the water tested fine, so I started this treatment. If this doesn't work, I'll go back to the 'drawing board'. You can see the white spots in the photo below, same as the one on the other thread. I think the stress of being in the treatment tank has been hard on the fish. The ragged edge on the fin that you can see in the photo is completely healed now, but it's having trouble throwing off the fungus.