Goldfish possess genetic traits that allow them to swell up to four pounds—the size of a Chihuahua. Experts say that's why you shouldn't release them into the wild.

"From cute to brute," it captioned the snap. Posted by U.S. Fish and Wildlife Service on Tuesday, February 25, 2025 The official USFWS website explains that although goldfish in pet store tanks may ...

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

"Without a tank limiting their size ... the wild also harbor harmful parasites and diseases that infect native fish. Goldfish multiply quickly, too. Without any natural predators in the wild ...