Sick Goldfish????

Question

I have a 29 gallon tank with a 55 gallon external power filter, air bubbler, 2" natural colored gravel, rock hideouts, and plastic plants. It has 3 2" fantail goldfish currantly, from nose to tip of tail. I just tested the water and it was very acidic and alklanik. I added some buffers and did a 25 percent water change. It had zero nitrite, but a caution level nitrate. I found a water/cleaner soaked wash cloths on top of my filter box, and suddenly my one/ maybe two fish are sick. The first being my smallest fish Claire. She has not developed a pot belly shape yet and has been hovering at the surface of the tank for a few days now, but has had a normal appetite. They get fed twice a day with tetra goldfish flakes. Her fins are sometimes clamped and she has developed some red spots on her stomach. The bigger one is on the right size and is a about a circular cm wide/big. The scales in that spot are a light gold/white and are rimmed with red. When her fins are near her body they appear

bright red, but they actually are normal looking and normal coloration. On the left side there is a half sized red circle right behind her fins also. I don't know if it is just me or not, but her head seems to have a reddish tint. The other fish I am questioning illness is Charlie. He is calico colored and his pupil on his left size looks a tad bit bigger than his right pupil. Also, when I got him about a month ago, behind his gill covers was pinkish on one side. Now it seems pinkish on the other side. I was wondering if this was just normal or does he have some other type of illness. He also has a normal appettite but has a more noticeable pot belly. The other goldfish Kate seems healthy but has a much bigger pot belly then the other two. Her scales aren't protuding, and otherwise she looks healthy so I don't think she has dropsy. So the main question is whatr is wrong woth my goldies? Does Charlie have pop eye? Also, I don't have an isolation tank big enough for sick goldfish so

can I treat the in the same tank?
Thanks So Much In Advance!!!!!

Thanks mm, currently they are being treated with Maradel Tetracylin and medicated bacteria fish food.

Answer 1

This really sounds like a blood borne bacterial infection to be honest. I would suggest you treat using two things:

First, use a medicated fish food for bacterial infections. It's available at all better pet stores and chain stores.

Second, you need to treat with a good antibiotic. Furanace or Furan 2 would be my first choices for this, but if you can't find either of those, treat with tetracycline (like Maracyn TC). Just treat as directed on the package.

And yes, treat them directly in the tank.

MM

Answer 2

I even have had goldfish before and thats precisely what occurred one fish became unwell and the different attacked if unwell fish are saved to long in a tank with healthful fish that fish will finally end up getting unwell to .....wish this enables

Answer 3

Hey I can't tell you what is wrong but I belong to a great goldfish forum that have vast knowledge. Please visit

www.thegab.org

Good luck