Can saltwater and freshwater fish live in opposite environments?

Answer Most fish can only live in one type of water—freshwater or saltwater. A fish that will naturally go from one type of water to the other at some point during its life is termed a diadromous fish. ... Read More »

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Why do saltwater fish die when put in freshwater?

Saltwater fish die in fresh water because their body cells are calibrated to keep a balance between the level of chemicals (salts) in their cells and in their environment. In fresh water, the high ... Read More »

Why do saltwater fish die in freshwater?

Though some species of fish can survive in either fresh or salt water, most saltwater fish will die if placed in freshwater (and most freshwater species will go belly-up if transplanted into the se... Read More »

Is the oscar fish a saltwater or freshwater fish?

Oscars, which originate in the waters of the Amazon, are freshwater fish. They are also known as peacock, walnut or velvet cichlids. Oscars come in a variety of colors, including olive green and al... Read More »

Do more people fish saltwater or freshwater?

More people fish in saltwater than in freshwater. The simple reason for this is that the vast majority of the world's water is saltwater, and the vast majority of the world's coastlines are along s... Read More »