3) A goldfish has a memory span of three months.

Goldfish have short memories, only able to remember things for up to three months. Despite this, they can still be trained to recognize their owner and respond to a set of commands. They are capable of learning and understanding concepts such as reward and punishment, associating certain behaviors with a positive or negative outcome. They can also be taught to eat from a hand or to play fetch.

4) The average goldfish is four inches long.

Goldfish typically reach a length of four inches, although some can grow to be much larger. They usually live five to ten years, although some can live as long as 25 years. They are omnivores and need both plant and animal-based foods to stay healthy. But did you know that goldfish can recognize people and can even be trained to do tricks? They can also be taught to swim through a series of rings or perform other stunts. It’s amazing how intelligent these small creatures can be!