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, ...

Water type: Archerfish are brackish water fish, meaning they need water that is a mix of freshwater and saltwater ... on or near the water's surface. In aquariums, they should be fed live insects ...

The giant freshwater stingray may be the ... The rays have also been targeted for the burgeoning aquarium trade, though it is now illegal to fish for stingrays in Thailand.

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 ...