Goldfish as with most fish have a swim bladder, this helps keep them the right way up, sometimes this can get get an infection or other ailment which causes it to stop working, a common cause is over feeding.
It floats upside down for 12 days.
its dead.. Sorry, but I think your fish is dead! :(
Its Dead. When it floats up and the gills are not moving and breathing for sure it is dead
As long as your fish is not upside down all the time, it is not dead. Most likely your fish has a bladder disorder and it cannot help but float upside down.
yes it can affect the fish because if you holed the fish upside down you can cause it not to breathe because all of the water is out of its system
there is no particular reason that your cat fish swims upside down but it could just be the kind of cat fish you have. it isn't abnormal for a cat fish to swim upside down because some can only swim that way.
Upside-down Cat Uaru Undulated Moray Eel Unicorn crestfish Uaru, upside-down catfish and unicorn crestfish are fish species.
it's dead
Upside-down
Its usualy dead
If your fish cannot swim upright, is swimming on its side or upside down, it most likely has a swim bladder problem.
For some fish, this is a way of escaping predators, for others, such as an upside-down catfish, it allows them to find food (primarily algae) on floating wood.