Flat fins!?

Question

My goldfish have started swimming with their top fins flattened down anyone know what this means, in fact they look a bit depressed. I'm up to date with the usual maintenance on the tank.

by the way the fish are still alive! and still feed ok.i've had them for 3 years.

Answer 1

http://www.kokosgoldfish.com/

Answer 2

Tight fins mean the fish are sick. There are several possibilities. Go down to your library and see if there is a book on fish diseases. Or do an internet search.
Have you checked your water with a chemical test? Ph, nitrates, ammonia, etc etc.

Answer 3

It is called tertopolisitimus, it often happens when the water oxygen changes slightly and they seem to look tireder than normal
It does not last for long, but change the water if they start to swim sideways
if you get too much of a problem, use filtered water to take out the impurities

Answer 4

As of this writing I'm sure they're already dead.

It's probably ich (A real name). Look for white puffy spots on their bodies. Pet stores have treatments for this kind of thing, but considering the cost of fish vs treatment, your better off planting your dead fish under your favorite rose bush, cleaning the fish bowl well, and getting more goldfish.

Answer 5

How long have they been doing that? Is there any othe type of fish in the tank with them? How long have u had them? I had a couple do that and they did not live much longer after that.

Answer 6

my fish done that it only lasts about 8-9 months

Answer 7

get them into a bigger tank, that is why they do that, and don't overfeed them, it might be also because the water is too full with nitrates.

Answer 8

no