The result is that goldfish are one of the most common fish that outgrow tanks. Amazingly, there are approximately 300 ...

Releasing a goldfish into the wild can create "an invasive problem that can last decades," the U.S. Fish and Wildlife Service said Brenton Blanchet is a writer-reporter at PEOPLE. He has been ...

Thinking about letting your pet goldfish run wild and free in the Pennsylvania rivers and streams? The U.S. Fish and Wildlife Service (USFWS) would have you reconsider that idea. In a Feb.