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

The beautiful Guppy is one of the most low maintenance tropical fish out there. Also known as the Millionfish or Rainbow fish ...

Luckily, there are small, quiet pets that require little time and effort to care for. Freshwater fish like bettas, guppies, neon tetras, mollies, platys, and zebrafish are great options beyond ...