Why are my goldfish fins turning yellow?

I recently noticed that my two goldfish were experiencing finrot. I treated once with Tetracycline. And now like 3 days later, the fins on one of my goldfish are starting to turn a ...show more

I went and bought some simple goldfish that were sold as feeders from petco a couple weeks ago and when i got them they started getting bacterial infections... I treated them with aquarium salt and they did great and are now healed completely but no...

I brought two new goldfish two days ago, one of them has its top fin down and looks a bit ill. When I brought it it's fin was down but now its siting at the bottom of the tank not moving unless I put some food in the tank then it moves a little but hardly...

I have four goldfish. They had fin rot but are beginning to heal already with medicine. One of my goldfish, the biggest about four inches, is starting to have white spots on hims sides. It's just a few spots and scales but the entire fish is not turning...

The edges of the fin of my goldfish are turning black. Let me tell you, its not a tropical fish just a plain old gold fish, that I won at the school carnival. But for some reason its not really gold, its almost white; like a very VERY light gold color...

Ok well, I have had my goldfish for about 5 months now and a couple of days ago he has been turning black on the edges of his fins. He is about 2 inches long and lives with another comet and 3 zebra danios.

I bought 2 goldfish at christmas time so only 6 months ago, One has grown slightly larger than the other and its fins and tail have started to turn black on the ends and is slowly all turning black. any ideas? thanks

I rescued an 11 inch comet goldfish from a lady who had it in with her tropical fish. They were eating it's tail, and it got septicemia. It's fins were red with blood veins. I took it from her to rehabilitate it and put it in a pond in the spring where...