Hi I was wondering if anyone could tell me what's wrong with my white fantail.

We put new carpet down in the livingroom last weekend and had to take down the 75 gallon tank. So I put my 5 Goldfish all less than 4 inches in size in a 10 gallon tank for 24 hrs. I took water from their big tank for the small tank and put their cascade 300 filter on the 10 gallon. But as I was syphoning the water out of the big tank with the gravel vaccuum some of the water looked dirty while they were still in it.

Then yesterday I noticed Zoe with a big bump on her side. It looks like a pimple coming out from under her scales. She eats fine just sits at the bottom of the tank alot. None of the other fish have this. Please help with any comments :huh:

I have pictures but cant figure out how to insert them in this message :(

Hi there, a long time ago I had a fantail that had this. A big zit like thing erupted from the side of my goldfish, and recently my red eye tetra had the same thing.
Recently I put up postes asking about something called Fish TB a highly contagious and , in my experience, untreatable condition.
The fish I have that had it got very thin and developed a curve in the spine , bu this pussy zit like tumore is also a sign of the condition.
I think you should wait for some one with a bit more experience to relpy to your post, but I would strongly recomend isolation for this fish right now. And decontamination procedure for the others and 100% water change with boiled gravel ect in the future .
Goldfish are quite tough and if you get the PH of ther water ok the will be fine in 100% new water.
But I would get a definate diagnosis of the condition first befor going to such measures.
I hope Zoe does not have TB.
fishkeepergod

I agree that a large boil-like bump on a goldfish that often bursts with cheesy-like stuff inside is often fish tuberculosis. I also agree that it's basically not treatable. I believe that all my fish carry it. Fish can carry it without symptoms.

See what I've written here:
http://www.fishpondinfo.com/health2.htm#bacteria

As it is highly contagious, your other goldfish would already be exposed if it's TB so I see no point in separating them.

I have a section on my site entitled, "What's that Lump on my Fish?" at
http://www.fishpondinfo.com/health4.htm#lump which gives some other possibilities for the problem other than dreaded fish tuberculosis.

When one must do a 100% water change, it is very important to add water conditioners and heavily aerate the water for at least an hour before putting fish back in. Tap and well water are usually very low in oxygen and high in compressed carbon dioxide. Not only does that mean the pH may be low until aerated (carbon dioxide in solution makes carbonic acid) but if the carbon dioxide comes out of solution inside the fish, they can get gas bubble disease (like the bends in human divers). Aeration should equilibrate the water and make it safer for the fish.

Those links you put up confirm that I have had TB in my tank for years !!!!!.
That puffed out belly is how all my male danios looked before they died, I fished them out anf euthanased them befor the goldfish and plecos ate them if the died in my tank and I now do the same with any other fish showing the signs. :(
My tank is now 85% stable with no more outbreaks yet :D .
I hope your other fish are ok Stacey, as for poor Zoe she might have to go to the big bowl in the sky . :(

Thanks both of you for your replies!

I seperated Zoe into a smaller tank to prevent the other fish from eating her. Then treated her with Melafix and daily water changes but unfortunately I lost Zoe today. I think it was TB but am not 100% sure. She developed dropsy signs as well after the bump started to heal.

My question is now, do I treat my other 4 goldfish and 1 pleco or do I wait and see if signs develope first? Thanks Again Stacey

I'm sorry about Zoe. I would treat the other fish with aquarium salt and MelaFix for a week. After that, maintain a tablespoon per 5 gallons of salt for any water that's changed out. If they show any signs, then try real antibiotics like Maracyn by Mardel. If it's fish tuberculosis, the remaining fish probably are carrying it. They don't always get active infections as a result. It can often stay dormant for a long, long time. My pleco is more than a decade old and carries what I think is fish tuberculosis, and he's never had any symptoms. He must be able to fight it off somehow. Goldfish are more likely to get sick from it but I hope yours don't!