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Why Do Goldfish Change Color or Turn White?

Updated on February 23, 2016
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Susannah's husband asked if he could have a fish. She didn't realize he meant plural. 8 big fish tanks later, she knows too much about fish.


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If you bought your goldfish for its colour, you may be disappointed.
If you bought your goldfish for its colour, you may be disappointed.

Goldfish are a common household pet. Although less popular than dogs or cats, fish come in a close third because they are relatively easy to care for and don't require a lot of attention, space, exercise, or training.

Because they don't leave their aquarium, they don't create a mass of housework, and they are also allergy-friendly for people who can't have a hairy pet.

However, something unusual can happen to goldfish. Over time, you may notice a change of colour. The most common change in color is from gold to white, although other changes can occurs as well. Read on to learn what may be causing the change.

Goldfish haven't always been orange.
Goldfish haven't always been orange.

Goldfish were one of the first domesticated fish. However, they did not always have the bright orange and red scales that we are familiar with today.

Orange goldfish (Carassius auratus) were in fact bred for the color. Originally, they were an olive green like the fish shown on the left.
Orange goldfish (Carassius auratus) were in fact bred for the color. Originally, they were an olive green like the fish shown on the left. | Source

Goldfish, like koi, are a type of carp. And just like wild carp, wild goldfish are usually olive green. Red, black, orange, white, yellow and brown goldfish have all been created through selective breeding.

Because of the selective breeding process as well as environmental factors, it's not uncommon for a goldfish to change colour. The change can be to a similar color, a different shade, or even a pattern.

So what makes a goldfish change or lose its original color?
So what makes a goldfish change or lose its original color?

There are plenty of reasons that goldfish can change colour. Here are a few of them:

  • Change in environment.
  • Change in water type.
  • Water temperature.
  • Amount of light.
  • Introduction of other fish or goldfish into the aquarium.
  • Newborn transitioning into adult colouration.
  • Old age.

Goldfish have pigment in their skin that reacts to light.
Goldfish have pigment in their skin that reacts to light.

Goldfish have pigment in their skin that reacts to light. When their skin is deprived of light or they have less exposure, this impacts on their skin. Over time, they can lose their colour and turn white.

Think of it this way: When people go outside a lot, they get a tan. If, instead, they stay inside, they become paler. Sunlight works in a similar way on goldfish.

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    • ethan 11 days ago

      hey guys I just want you guy know that we used to have a killer fish and the goldfish ate it!

    • ethan 6 weeks ago

      hi,again i want you to know my i got my fish 3 years ago and it turn white

    • ethan 6 weeks ago

      hi my my fish has been turn white and my sister

    • Chris 7 weeks ago

      I have had 3 pond gold fish that stay in a pond and overwinter in an aquarium as it is only 2 feet deep and the winters can freeze that deep here. One of the three turned stark white with the second year in the pond. The others stayed gold. Also the pond has become a breeding ground as they have had..15+babies. All various colours 3 olive. There were 4 but th e last one has not made it out of the pond as it is extremely difficult to see to catch. I wonder if the white one is perhaps female and due to hormonal changes caused it to go white..

    • carmen 4 months ago

      we have our gold fish in an outdoor pond. we overwinter them inside. they are large they were originally feeder fish and have grown just beautiful. gorgeous fantails on them. 2 of them are turning white. pond is partially shades with plants. three frogs came and stayed this summer. they are 8 years old. thank you

    • Stevie 6 months ago

      I have two gold fish one has been white for ages and one is brighter orange than ever

    • wilbur 7 months ago

      my goldfish, Mister Buttocks was brilliant orange but ive just noticed he has white patches all over him. Please tell me I dont have to throw him in the canal?!

    • Sarae 7 months ago

      I have six fish and this is the first time I'm noticing that my orange fish has change color

    • Lorenzo 8 months ago

      I raised fishes for many decades, since the 70's. My favorite have always been goldfish.

      However always had the same problem of buying some beautifully colored "red" goldfish. And after a short while, only a few months, they would lose their deep red color, to become a plain pale orange.

      Is there a main fish food ingredient that maintains their deep red color.

      For example everyone who breeds birds, especially canaries, know that enhance the red coloring of the Red Factor canary breeds, there are specific foods such as carrots and tomatoes. Otherwise the Red Factor Canaries very often will turn white. Also now many fine pet shops now carry some beautifully colored "red" goldfish. And most all become a pale orange after a short while.

      The employees at those pet shop are clueless as to the reason why, because most are just new to goldfish. Lucky if they have at least 5 experience, which they naively consider a long time.

      There must be something that the fisheries do to enhance the deep red coloring of goldfish, before they ship them to the pet shop warehouses.

    • Madison Burke 8 months ago

      hi. Well on my 7th birthday I got 2 goldfish of my friend and then 2 weeks later one of them died of red spots . The other one mango is still alive but he is 6 years old and is turning silver on his stomach and the top and bottom of his tale . I think it may just no old age or the food I give him. There is also a weatherloage in the tank it's like a water snake but the lady at pets at home said it was perfectly fine .

    • Madison 8 months ago

      My goldfish mango is 6 years old and he was orange yesterday and I woke up and saw white on his belly and the top and bottom of his tale . At first I thought I was dreaming but then I woke up and he was actually white .

    • Tanya 9 months ago

      My goldfish is turning white - I don"t love him as much. I'm not usually racist - what should I do.

    • Brandon Fisher 9 months ago

      My Goldfish (Daniel and Mr. Krabs) were orange one day and i got home and they were starting to lose their colour. I thought they were ill and might die. Thank god they haven't and i now have had them for 4 years!

      Thanks for this page.

      Brandon

    • Ellen 10 months ago

      Bubbles my goldfish was red one night and he looked sick.in the morning I woke to see he had a white tail which hadn't been there before.hes 1-2 years old.why is this happening?i was thinking old age but he's only 1-2 years.why?

    • John 11 months ago

      My 3 yr. old goldfish 1 a Black Moore turned Orange and my 2 fancy tail goldfish, one turned all white & the other is on her way to turning white but all are happy & healthy

    • Gavin 12 months ago

      I got my gold fish a while back he was brownish grayish and hr slowly turned silver i didnt notice then his belly turned yellow and yellow crawled up his body and just bout a week ago he had a dark gray stripe down his back now he yellow

    • adan 14 months ago

      i have 12 gold fish but all of them are white and some black

    • Cam 19 months ago

      I had one which changed between black and orange every two weeks for about six months.

    • zahid Nabi 20 months ago

      among 2 golden fishes one fish color turning white

      its happened since i change the water of my home equarium. Although previous i have changed water every 3 month.

    • chow the fish 20 months ago

      My goldfish chow, kills any other fish in the tank . We started off with two gold fish chow and superman we put them in the tank chow turned black and then superman died we replaced superman and same thing happened. So we tried a sucker fish chow turned black and the fish died. Then we put two sucker fish in the tank same ending . Now chow is all alone and his head is white

    • Sindiso 21 months ago

      I have 2 gold fish. Orange and Yellow. The Orange 1 is starting to change colour so I was terribly worried coz ive only had them for 3 months. Thanks for the article

    • Jimmy 22 months ago

      My goldfish stinks

    • Einar Erik Volsung 2 years ago

      My daughter won a gold fish at school..Goldie the gold fish.I put it in our 20 gal.tank with live plants and a good light source super awesome filter system and the few other fish who have been there for over a year now and now Goldie will have to change her name to WHITE LIGHTING or Goldie the not so gold ,gold fish....thank you for the info

    • jadi 2 years ago

      i have a goldfish, well its color is brown and a belly part of golden yellow. but some of its part turns red? i did some research about this but it appears that gold fish can have color changes on their skin with blue, yellow and white but no red? side of its eyes are red unto its tail. any reasons why?

    • kezza 2 years ago

      I,ve had my goldfish for 14 years now he only as orange on the top of his body the rest turned white, I just think it is there age as I have another in with him and he,s 4 but still the same colour as when he was a baby.

    • Bethany 2 years ago

      My gold fish has been white for the past 3-4 weeks or so, and i was sooo confused. But now I know y, so thnx for that and ima try putting it in the sun for 1 week and ima c what happens. Hopefully it changes colours!!!

    • amy 2 years ago

      my gold fish is brown

    • Keith 3 years ago

      My fish is about 3-4 years old and started getting white patches on him. I always thought he was really sick! All the other fish he was born with had white, so maybe its just his genetics :)

    • Hi 3 years ago

      My goldfish is white

    • Nekia 3 years ago

      i have a goldfish and its white why is that is something wrong with the fish

    • Poison ivy 3 years ago

      my goldfish is about 7 years old and he is changing colour to patches of silver white he was two colours at first but he is rapidly changing to all silver the only thing I have changed is that I now put fresh weed into the aquarium he has a companion who is about 2 years old who is still very orange with no changes to colour he seems well enough and the position of the aquarium is not in full sun and has not been moved I feed the same food as always but wondered about his colour

    • Scottie Wesson profile image

      Scottie Wesson 3 years ago from Verbena, Alabama

      Ok, so I have a white and gold goldfish and he is turning yellow. Anyone know why?

    • arun 4 years ago

      geez, i went to petland today and they had fish the size of...... fish. this other fish was what um red and white. kinda looked like the american flag. i asked the guy what happened, and he said temperature changed. that still haunts me how the fish looked like. uuuggh

    • Marion Clements 4 years ago

      My 'Black' Goldfish has started to develop spotted, blue with white and a touch of orange on the top of its head, and over the last few weeks these markings are continuing down the back of the fish, there are 3 fish in the pond with these markings already (Cherbunkins?) Its a reasonable sized fish and has been in the pond for 2/3 years. There are several other goldfish of varying sizes and shades, and also Ghost Carp, and all appear healthy.

    • kainat 4 years ago

      Its just so amazing on they change from orange to white

    • Rosalinne 4 years ago

      Today I woke up and my man goldfish died... :'( I Won Him At The Fair &&' The Women Goldfish Is Still Alive...

    • Tish 4 years ago

      one of my golfish turned white too. i was so worried because i thought something was wrong with him, i thought he was sick or something...how do i get his original colour back? will exposing him to a little more sun help? is the other one also going to lose its colour, it hasn't yet. help

    • Kaylene Stevens 5 years ago

      My gold fish has turned white and i now know why, but after fixing this problem will his colour eventually come back

    • hi 5 years ago

      what about temperature and he color of goldfish

    • Rehana Stormme profile image

      Rehana Stormme 5 years ago

      Can you imagine! I always thought gold fish were orange. This is a very interesting article!

    • Clawdeen 5 years ago

      my goldfish is turning white i have had for it about 6 months

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