Dorsal fin
I have a 16″ rescue Koi that I got late last fall. He immediately went into hiding and I never saw him again until about a month ago. He ventured out a few times when the water temps were up to the 65ยบ range but then the water started to get green so I have never had a real close look at the fish.
Today we drained about 2/3 of the pond and netted all the fish. I put the koi in a kiddie pool with a pump.
As I was returning the fish to the pond I noted the dorsal fin of this fish looks like the front 1/3 is injured. It looks pinkish where the fin should be. He looks good otherwise but is keeping the fin close to his body. He had been swimming about with the others just before I netted him. I am almost certain I did not damage his fin netting him and he wasn’t hard to capture so I don’t think he would have hurt himself today.
I have put 1/2 cup salt and two teaspoons of Melafix in the water and he is in the kiddy pool by himself. I have a sheet of plywood over the pool and a fountain pump running in the pool. The outside temps should go down to the 40 tonight and back to mid 70s tomorrow.
Any suggestions or treatment ideas?
Judith in AZ
Category: Ponds-Koi
