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

In ideal conditions, with a spacious tank, clean water ... its fins to appear larger and more intimidating to other fish. 7. Goldfish Can Grow to Large Sizes In the right conditions, goldfish ...

If you can no longer care for a live goldfish, the United States Fish & Wildlife Service recommends trying to find another caregiver, donating a fish to an aquarium or school, returning it to a ...

While your goldfish may look tiny now, without a tank limiting its size, the Fish and Wildlife Service says it can balloon into a "football-sized" invader. The agency says a single goldfish ...

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 ...

Don't throw away your old fish tank! Discover 35 creative ways to repurpose and transform it into something new and exciting.