Dory, the small blue fish with a bad memory from the "Finding Nemo" franchise, is a blue tang, or a Paracanthurus hepatus in scientific terms. Native to the Indo-Pacific and found in coral reefs ...

Guppies are tiny, easy-care fish that grow up to 1.6 inches (4 centimeters) long. They like to live with other guppies and are social, active fish. Males are known to harass females, so it’s ...

The blue tang is a popular, high-value aquarium species. Trade data show that out of nearly 2,300 saltwater aquarium fish species imported to the U.S., blue tangs have been ranked as high as the ...