Goldfish possess genetic traits that allow them to swell up to four pounds—the size of a Chihuahua. Experts say that's why ...

The USFWS asks goldfish owners who can no longer keep their pets to rehome them or return them to a pet store — or even consider reaching out to a local aquarium or fish rescue group for help — rather ...

One of the most persistent myths about goldfish is that they only grow to the size of their tank. While there's a grain of ...

On it website, the government agency explained that although goldfish in pet shop tanks may look harmless, "in the wild, they don't stay small." "Without a tank limiting their size, goldfish that ...

Content continues below Discarded goldfish have been known to grow to the size of a football or larger. Sure, they may start small in a household tank, but goldfish can balloon under the right ...