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.
It floats upside down for 12 days.
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.
Fish do not normally "float around" they swim. If your fish is floating/sinking then it is probably dead.
The fish is either too full, or ill
probably cuz he's, well dead, or bloated. it happens with fish too.
Its Dead. When it floats up and the gills are not moving and breathing for sure it is dead
If a betta fish is floating at the top of the tank, it could indicate a swim bladder issue, which may be caused by overfeeding, constipation, or infection. It's important to monitor the fish's behavior and water parameters, and consider adjusting its diet or seeking veterinary advice if necessary.
Yes, but they aren't needed. The tank should be empty except for an upside down cup for the bubble nest. Force the fish to focus on each other and the task at hand.
Simple observation. You will either see them fighting or see the damage on the fish that indicates they have been fighting.
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.