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, ...

Guppies are like confetti with fins—tiny, cheerful, and colorful in all the right ways. They're often the first fish people fall for, thanks to their adaptability and endless color combinations.

A bright blue fish was caught off the coast of North Carolina — and it could set a world record. A photo shows angler Connor Stone holding the colorful fish, a member of the species called ...

Two new species of fish were discovered in tributaries of the Black Warrior River System in Alabama, according to a study. Photo from Bernie Kuhajda A collection of colorful fish that are crimson ...

Just keep bidding! Fish enthusiasts who want to add to their aquarium — interested, maybe, in an orange clownfish like Little Nemo? — or to sell the rare and colorful fishies you've been ...