I moved my koi from a tank to a pond and my gold koi's tail fin slowly changed to a green color is there something wrong. And I let it get adjusted to the water in a bag for about an hour and a half then put it in the water.
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.