Most fish have swim bladders giving them buoyancy that allows them to "float" at various levels in water. While some species are surface dwellers other fish floating on the surface are deceased and float because of gases formed within their bodies due to the process of decay.
Fish float when they die because their swim bladder burst, which causes them to float
Well its hard to tell but usually its a lack of oxygen in the water.
Because they can swim.
if it is not swimming it is dead!
Two fish. One fish swimming going up an another swimming down.
it means your swimming in a pool with dirty water and fish.....get out!
A fish that is swimming vertical is usually ill or stressed and could die if not treated
Just keep swimming, just keep swimming.
Just keep swimming, just keep swimming.
Pescado means fish (a fish ready eat). If the fish is in the water swimming, its called pez.
swimming
fish
Individual fish are safer from a predator if swimming in a shoal, than if they are swimming alone.
Just keep swimming, just keep swimming.
swimming