Here are our favorite types of freshwater fish you can keep as a pet. If you're in the throes of setting up a home aquarium, ...

Aquatic predators such as oscars, catfish, and pet turtles feed on other fish in the wild. But is feeding live fish a good ...

Freshwater Aquariums: A Beginner-Friendly Choice Freshwater fish tanks are generally easier ... complex underwater world with ...

Among the diverse choices, the Archer fish stands out due to its ability ... on or near the water's surface. In aquariums, they should be fed live insects, mealworms, and freeze-dried plankton.

The giant freshwater stingray may be the world ... where their more commonly known relatives live. These ancient fish, little changed over many millions of years, can reach 16.5 feet long ...

This story appears in the April 2017 issue of National Geographic magazine. Hundreds of millions of people worldwide would lack their prime source of protein without freshwater fish. Yet the lakes ...