Fish come to the surface of the water to breathe air, regulate their body temperature, search for food, or escape predators.
If the water surface is frozen, fish continue to swim.
Because fish breathe water so when their lungs fill up it makes them sink but when it empties they rise which is why dead fish come to the surface when they die.
I dont know, but they come to the surface alot because they're not fish.
Because fish breathe water so when their lungs fill up it makes them sink but when it empties they rise which is why dead fish come to the surface when they die.
generally a special formulated fish food is sprinkled on the top of the water, and the fish will come to the surface and eat. there are also automated feeders for large tanks.
This is normal for a great many fish. In nature there is often food at the surface (bugs and such). It can also mean that there is not enough oxygen in the water. If the fish are starved for oxygen they will look elsewhere for oxygen. They will put their mouth at the surface and open and close it. It almost looks like they're trying to blow bubbles. If this is the case, get an air pump and aerator and put it in the water. The bubbles flowing through the water will add oxygen to the water.
whales have to come up to the surface for air fish don't
Most fish always have to stay in water. Dolphins come up to the ocean surface for a breath of hair. Dolphins breathe through their blowhole.
Before a storm, there is very little dissolved oxygen in the water, so fish rise to the surface for oxygen,which is more plentiful near the surface.
Some fish are surface fish and others are not. Without you saying what kind of fish it is that is at the surface it is impossible to say if anything is wrong. BUT! if the fish are breaking the surface and gasping for air, then you have a major water problem and need to do some very large water changes immediately. Otherwise your fish will die.
Fish Camera
Unfortunately, I believe it's time to replace the fish.