What are fun facts on pet fish?

Pet fish are fascinating creatures that can live for many years; for example, some goldfish can live over 20 years with proper care. They come in a wide variety of shapes, sizes, and colors, with species like bettas and guppies showcasing vibrant hues. Interestingly, fish can recognize their owners and even learn to perform tricks, such as swimming through hoops. Additionally, maintaining an aquarium can be a calming hobby, as watching fish swim has been shown to reduce stress and anxiety.