Goldfish Facts: Fun and Interesting Information About Goldfish


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Do you have a goldfish at home? If so, you probably know that they are very interesting creatures! In this blog post, we will discuss some fun and interesting facts about goldfish. Goldfish are one of the most popular fish kept as pets in the world, and for good reason – they are incredibly fun to watch and easy to care for. We will cover a variety of topics related to goldfish, including their history, biology, and behavior. We hope you enjoy reading this post – happy goldfishing!

20 Fun & Interesting Goldfish Facts

Let’s dive in (no pun intended) and take a look at some fun and interesting goldfish facts!

Goldfish are a type of fish that come from the carp family

Goldfish are actually a type of carp, which is a large fish that can weigh up to 100 pounds. Carp were first bred for goldfish in China over 1000 years ago. Goldfish come in a variety of colors, including orange, yellow, red, white, and black. They can also grow quite large – some goldfish can reach up to 18 inches long!

Goldfish can live for over 40 years

One of the most amazing goldfish facts is that they can live for a very long time. In fact, goldfish have been known to live for over 40 years!

Tish, a goldfish owned by Hilda and Gordon Hand of Carlton Miniott, North Yorkshire, UK, lived for 43 years. Tish was won at a fairground booth by Hilda’s son Peter in 1956.

Goldfish do not have stomachs

One of the most interesting goldfish facts is that they don’t have stomachs. This means that they can’t digest food in the traditional way – instead, they absorb nutrients through their skin. This also means that goldfish need to eat frequently, and that they should not be fed large amounts of food at once as they produce a lot of waste.

In the wild, goldfish typically eat small insects, plants, and other tiny organisms.

A group of goldfish is called “a troubling”

Did you know that the collective noun for goldfish is “a troubling”? This means that a group of goldfish is called a troubling. Just like you’d call a group of lions a pride or a group of geese a gaggle, you can call a group of goldfish a troubling!

Goldfish are social animals

Another interesting goldfish fact is that they are social creatures and prefer to live in groups. If you only have one goldfish, it may become stressed or lonely. It’s best to keep at least three goldfish together in order to create a healthy environment.

Goldfish like an environment that is not too noisy and is relatively calm

In addition to being social creatures, goldfish also prefer calm environments with little noise and movement. If your home is too active or noisy, goldfish may become stressed and ill.

Goldfish can grow to be very large

It’s true – goldfish can grow to over a foot long! When choosing a goldfish tank, make sure you have enough room for your fish to grow.

Goldfish come in a wide variety of shapes and colors

Goldfish come in a variety of shapes and colors due to selective breeding. This means that goldfish have been bred over time to have certain characteristics, such as a certain color or shape. There are now hundreds of different types of goldfish, each with their own unique look.

Goldfish have been kept as pets for a long time

Goldfish have been kept as pets for over 2000 years, making them one of the oldest domesticated fish in the world. Goldfish were first bred for goldfish in China over 2000 years ago.

You should never touch a goldfish

One thing to be aware of is that goldfish are very sensitive to touch. Touching a goldfish can damage its delicate scales, and may even cause infection. So it’s bed to avoid touching your goldfish at all cost.

Goldfish are able to remember people’s faces

Goldfish are able to recognize peoples faces and can tell the difference between human faces and other objects. They do this by recognizing the shapes of our eyes, nose, and mouth. This is an interesting ability that goldfish have – most other animals cannot distinguish between different human faces.

Goldfish get used to being around the people who take care of them

Goldfish are very intelligent creatures, and goldfish can get used to being around humans. This means that goldfish will recognize their owners and may even follow them around the goldfish tank!

Goldfish have a memory span of three months or more

Another amazing goldfish fact is that they have a memory-span of at least three months. This means that goldfish can remember things for a long time, and can even learn tricks!

Goldfish are unable to close their eyes

One of the more amusing goldfish facts is that they can’t close their eyes. This is because goldfish don’t have eyelids! This means that goldfish can actually sleep with their eyes open.

Goldfish can see more colors than people can

Another goldfish fact that may surprise you is that goldfish can see more colors than humans can. This means that goldfish are able to see a wider range of colors than we are!

They can see wavelengths of light that humans cannot, such as ultra-violet and infra-red light.

Goldfish don’t wee

Goldfish don’t urinate like humans do. Instead, goldfish excrete ammonia through their gills and urea directly into the water they live in. This is why it’s really important to keep on top of the water conditions in goldfish tanks, use a good filter and change the water regularly.

Goldfish can live in water that is very cold

Goldfish can also live in very cold water – they are able to survive in water temperatures as low as 20 degrees Fahrenheit. This is why goldfish tanks don’t need a heater and probably why they are such a popular starter fish.

Goldfish lay eggs

Did you know that goldfish can lay up to 1,000 eggs at a time? It’s actually possible to breed goldfish at home, and it’s a lot of fun to see the eggs hatch and watch the baby goldfish grow up. Just make sure you have a big goldfish tank ready to house all those fry.

Goldfish can changer color

Another goldfish fact is that goldfish change color depending on the light levels in the room. This means that goldfish can become darker or lighter, depending on how much light there is in their goldfish tank.

Goldfish that are kept outdoors, such as ponds are often brighter colored than goldfish that are kept in an aquarium.

Goldfish are omnivores

Goldfish are omnivores, which means they eat both plant and animal matter. This is why goldfish should be fed a variety of foods, such as goldfish flakes or goldfish pellets to keep them healthy.

Goldfish will eat plants, insects, small crustaceans, and occasionally other tiny fish.


So there you have it – some fun and interesting goldfish facts. Goldfish make great pets for people of all ages, and are a lot of fun to watch. Just make sure you take care of their water conditions and feed them a variety of foods to keep them healthy. Thanks for reading!

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