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

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, ...

Train them to swim through hoops or follow your finger — they love the challenge. They recognize faces, learn tricks, and ...

But, of course, freshwater aquariums require some upkeep, such as cleaning the tank and filter, monitoring the water quality, ...

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 ...

Among the diverse choices, the Archer fish stands out due to its ability ... makes them an interesting pet to have in aquariums, especially at feeding time.