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Goldfish
Originating in China over a thousand years ago, the goldfish is a popular domesticated pet. They come in many different types of varieties and colors, from the original Common Goldfish to fancy Orandas. Questions relating to the care and behavior of goldfish are welcome here.
3,498 Questions
Fish usually live different life spans depending on which type it is, but if the fish is kept healthy then it can live a very very very long time. Some fish can live up to fifty years! If you are talking about a goldfish then the usual life span if it dies of old age of course, is about twenty to thirty years, occasionally forty. If you want to know about a Betta fish then it usually lives about ten to twenty years. Any other tropical or usually domestic fish then I'm not quite sure about but those are the most popular breeds of fish as far as I know and that is what I am sure of.
Why do some goldfish change color?
Goldfish change color for one of two reasons. The first is a lack of sunlight, which ends up retarding the pigmentation cells in the fish's scales that are responsible for color. This causes a fish to become lighter or white in color. The second reason is for a darkening in scale color. This is because due to irritation of the skin the fish's body releases a chemical called leukine which stimulates color pigmentation cells. Especially melanophores (black pigmentation cells) thus causing the fish to have abnormally high amount of black pigmentation.
depends...
they quite often colour with age, as they get older they get greyer (paler)
also a caused by poor health, feeding and water quality
It's all about where the tank is. For example, if you put a goldfish in its tank in a room with no light, it would turn white.
If your fish has changed colour, it's simply getting used to the light change from the shop/supplier to your home.
Why is your goldfish floating diagonally?
The fish is so ill it is dying but hasn't got there yet. Try changing its water a few times but make sure the temperature of the new water is the same as the old water. You just may save its life. If you do save it, remember to change its water regularly and never let food go rotten in the tank.
What are the mating habits of goldfish?
Unless they are separated, the eggs quickly become a goldfish snack.
How do you tell if a goldfish is ready to mate?
The female will become very round and swollen with eggs. The male will develop white spots called "tubercles" on his gills and pectoral fins.
When were goldfish introduced to the US?
In the 1850's. The first recorded commercial shipment was in 1878, according to Leo G. Nico and Pam L. Fuller in their article "Spatial and Temporal Patterns of Nonindigenous Fish Introductions in the United States." (Fisheries, January 1999)
The female can produce a batch of 500-1000 eggs, but they need to be fertilized by the male for them to become viable. She releases the eggs, they stick to the plants, walls, rocks in the tank, and then the male has to come by and spray them.
How long does it take for a female goldfish to lay it's eggs?
The female will mate with the male a around October time she will lay the eggs in January or December and they should hatch in April. note most wont survive if you have a pond so put them in to a tank until there bigger then let them back in to your pond
Goldfish can get VERY big. Actually, they naturally never stop growing. They can even get up to 3 feet. You may find this hard to believe, but this is because most goldfish's growths are stunted because of small tanks. Sometimes they adapt to the tank size and only grow if put in a bigger tank but this is rare. If a goldfish is given a healthy, natural life, they will continue to live and grow. The record for oldest fish is about 49 years.
The person above me is very right. Goldfish usually don't reach their full length because they die (cuz of small tanks, over feeding, and any other abuse) before they can. They never stop growing but their growing starts to slow down after a while. That's why it's 20 gallons for one goldfish and another 10 gallons for additional goldfish (3 large fancy goldfish in a 50 gal).
The two people above me are partially right. There is no record of any goldfish reaching 3 feet, only koi can attain a length that big. Goldfish are also capable of growing to their adult size (12 - 14 inches) in a 10 gallon tank as long as you keep the tank clean, warm and you put the goldfish on a varied diet. Although, since goldfish can grow big and produce a lot of waste, it is best that you move them to a bigger tank once they grow-out their old one.
According to experts, an ordinary or common goldfish will grow up to 26 inches while koi carps will grow and weigh up to 90 lbs.
REALLY REALLY BIG, of course depending on the tank size, if put in a big tank they can reach the size of a koi
They can live to the age of 45 if in clean conditions. They can get as large as 10'', but if they have descendants of a large fish such as a koi it can grow as large as a koi. The goldfish also grows with the tank as you give it bigger ones. I have a comet goldfish who is half that has lots of koi in him and a little bit of goldfish,he is 2 years old.
It will grow to the size of the tank you might have you see the big gold fish in the shop what r about 5-7 ich long
Can you use marine fish food for goldfish?
How can a fish be a"cold water tropical fish"? "Tropical fish" means the fish come from tropical waters and do not do well (In some cases die) if kept in water that is too cold for them. Goldfish are Coldwater fish and need their water around 50F to 65F. So no, they will not do well in water that is constantly between 70F and 80F where most Tropical fish need their water to be.
How many times should you feed a fish?
Feed a Queen angelfish many small portions of food throughout the day instead of just one or two big meals.
Can you use purified water for a goldfish?
yes you can use any type of water for gold fish but to be on the safe side i would go out to a store and buy a water clearifyer
well ive had my goldfish for 6 years now and
i have the basics;
4l fishtank,
2 goldfish,
100g fishfood flakes,
thermometer,
and decorations.
and i also use tap water and nothink else.
but i always clean the tank out every
sunday night at 5:00pm at night.
hope this has helped you like it helped me.
I don't know if goldfish (or any species of fish) actually feals fear as we do (as in anticipation) but they certainly do have an immediate response to any kind of threat. They hide and know how to take cover from above attack from birds etc they also know when and how to hide in plants, branches, holes etc when being hunted by predatory fish too. So to answer your question. I would say goldfish are afraid of attack both from the air and in the water by any kind of predator that would like to eat them.
Can a goldfish live in the same tank as a koi fish?
No, a Koi is a carp. It comes from the Japanese word Nishikigoi which literally means 'coloured carp'.
Why does your goldfish has white stuff on it fin?
White particles on fishes' fins indicate fungal growth. It should be treated with fish medicines immediately or it may spread.
How do you keep the temperature of tropical fish water?
You should have a thermostatically controlled aquarium heater, and a good thermometer to monitor the temperature.
Although they are sold, don't use the type of thermometer that you stick to the glass; that doesn't give you an accurate temperature. Use one that goes in the tank itself.
For tropical fish, I have had the best success with the temperature about 75-78 degrees F.
Scietific names and parts of goldfish?
Well to start, the goldfish has two eyes, two nostrils, two gill covers, and a mouth. Then comes the two major parts- the head and abdomen. And lastly their are the fins: the pectorals, the pelvic fins, the caudle fin(s), the anal fins, and the dorsal fin.
How many eggs do goldfish lay per month?
Under normal conditions goldfish spawn once each year during spring.
Even a small amount of alcohol in a fishes water will effect it badly and probably kill it. No they don't get drunk they simply die.
Can goldfish breed with sarasa comets?
Yes they are different variations/varieties of the same species.
Should a Betta fish be going up to the top of the fish bowl to get air?
Yes, bettas should go to the surface for air. They are air breathers. They have an organ, the lybrinth, that is very lung like. They breath in air from the surface. Their gills do not work like other fish. If they can not get to the surface for air, they die. Of corse yes their gills are different from other fish so that is why a Betta fish has to be going up to the surface to get air or else they die.
