Hello,
I made another post because I thought the koi injured herself on a milk crate but someone asked me to double check if she had a spot before I added the milk crates so I went back and noticed she did. She is an Asagi and that orange/red made it hard to spot. So we bought her and 6 others within a week time frame and we placed them all in a quarantine tank so we could observe and treat with general cure and erythromycin. They have been in that treatment for 4 days now. I added .3 salt today and will add .1 everyday until I get to .6 ... Also yesterday we took her out and put some tricide neo on the area for about 5 seconds then rinsed with iodine ... then rinsed with water and back into the pond. Now the tricide neo is a few years old so I don’t know if it’s still good. We kept in the freezer in an ziplock. So I’ll post the photos from the beginning (March 24 until today) so you can see the progression. The second to last one that is very red is right before we treated with the tricide neo lastnight and the last one that is more white is today. Any ideas to help would greatly be appreciated