Gold fish has a bleeding tumour?

I cleaned out my gold fish tank and when I put back in the filter I realised my fish was bleeding from a tumour. The tumour is almost as big as a pin pong ball and has been there for well over a year and doesn't seem to be effecting the fish. But I don't know why it's bleeding. Can anyone tell me what's going on with my fish?

Sajith2013-05-17T07:54:40Z

Favorite Answer

that may happened by some infections or it may have injured.many fish get this problem because of not good branded food.The only to cure is to take it to an veterinary hospital in a bowl.The doctor sugest some medicine(which we should put in the tank).It will be something in yellowish green colour.

hoylesr2016-08-11T04:27:06Z

It can be called hemoragic septisemea, I bought the spelling flawed but it surely feels like its spelled, you could try to treat it with tetricycline, or a different kind of antibotic for fish tanks however i have been a fish hobbiest for 25 years and this type of health problem more often than not ends in a fatality, but you maybe competent to save lots of those that don't have it as unhealthy.

Anonymous2013-05-17T07:50:39Z

It's a goldfish, flush it, let the sewer crocks get it.

Seth2013-05-17T08:19:56Z

Its probably because it has to cold water