How old is my goldfish?

The scales are made up of concentric rings which are formed closer together during cold weather when there is little fish growth, and further apart in warm conditions when the goldfish are growing more quickly. By counting the bands of closely spaced rings, the age of the fish can be determined.
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How big is a 1 year old goldfish?

Your goldfish will reach about 2 inches in 6 months. As long as it has adequate nutritional support, it'll reach over 3 inches by the end of its first year.
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How old is a 3 inch fancy goldfish?

Fancy varieties grow outwards as much as in length, so a 3 inch Veiltail is likely to be 12 months old, but a Comet can achieve that size in a few months.
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How can I play with my goldfish?

You can actually interact with your goldfish by teaching them to swim through hoops and push balls around. You can also feed them with your fingers. Playing with your goldfish is a fun and engaging way to enjoy owning a pet fish.
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What is the oldest goldfish?

Goldfish 43 years

A goldfish named Tish, owned by Hilda and Gordon Hand of Carlton Miniott, North Yorkshire, UK, lived for 43 years. Hilda's son Peter won Tish at a fairground stall in 1956.
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How To Keep Your Goldfish Alive For 15 Years



Do goldfish recognize owners?

Pet goldfish can distinguish between humans, and often recognise the human that regularly feeds them. Pet goldfish can also seem quite scared of new people, but become more comfortable with their owners over time as they realise they aren't a threat.
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How quickly do baby goldfish grow?

The average growth rate of a goldfish is about one inch per year. Baby goldfish grow very rapidly in their first few months. Then their growth rate slows as they get older. There are ways to make your goldfish grow faster, but remember: you should always aim to provide your fish with the best possible care.
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Do goldfish get lonely?

Goldfish are just not the same as humans – they're not social animals in the same way that we are, and they don't have the same capacity to get bored or long for companionship. In fact, many of the longest living goldfish have been kept alone, with no obvious harm to their well being.
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Is it better to have 1 or 2 goldfish?

Keeping at least two goldfish in an aquarium is recommended to provide companionship and promote activity. Solitary fish can exhibit depression and lethargy. Goldfish are generally not aggressive so they can be kept with most community fish provided the other fish are larger than the size of the goldfish's mouth.
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How do you cheer up a goldfish?

Make the tank interesting

Goldfish spend lots of time exploring their tanks to entertain themselves, so set up your tank in such a way as to provide lots of stimulus for your fish. Gravel, plants, ornaments and airflows can all make life interesting for your fish.
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Do goldfish need complete darkness to sleep?

Just like humans, goldfish need to sleep to restore their energy and maintain a normal immune function. Goldfish need at least 8 to 12 hours of complete darkness to sleep, and anything less will start to show negative effects on their health over time.
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Do goldfish eat baby goldfish?

Since goldfish aren't aggressive, they don't have intentions of eating one another. However, under certain circumstances, they may end up eating a baby goldfish. This is because they swim around looking for small morsels of food, and sometimes when a baby goldfish comes across their path, they mistake it for food.
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What do baby goldfish look like when born?

Newborn baby goldfish start out black. As they grow, they develop a brown color, perhaps with hints of silver. Some areas of their body are almost see-through. It can take up to two years for a goldfish to fully develop its color.
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What is the biggest goldfish?

How big can goldfish grow?
  • Burnsville officials found numerous goldfish the size of a football. The largest goldfish weighed four pounds and spanned 15 inches, per CNN.
  • The largest wild goldfish on record was caught in South Carolina last year and weighed nine pounds, reported USA Today.
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How can you tell if a goldfish is happy?

Your fish are happy and healthy when they:
  1. Swim actively throughout the entire tank, not just hanging out or laying at the bottom, floating near the top or hiding behind plants and ornaments.
  2. Eat regularly and swim to the surface quickly at feeding time.
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What do goldfish do all day?

First of all, it's normal to see your goldfish swim, play and explore during the day and sleep at night. Do fish sleep? Yes, but because they have no eyelids, they can't close their eyes like we do. The goldfish behavior can be influenced by the environment, tank mates and also by its owner.
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Are black goldfish rare?

As we mentioned earlier, black color changes are pretty rare among all types of goldfish. Thus, you'll need to consider all possible causes to determine the best course of action. Black is actually a notoriously unstable color in goldfish. Many pure black goldfish end up losing the color and turning white or yellow.
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Is my goldfish pregnant?

Goldfish don't get pregnant, as they are egg bearers. However they will increase in size when ready to lay. If your goldfish are getting fat and then dying, this is more likely a case of dropsy rather than pregnancy.
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Why are my goldfish born black?

Baby goldfish are born much darker than they will be as adults. This may be because dark colors helps these small, vulnerable fish escape the attention of predators. With proper husbandry, the fish gradually change color and develop orange or gold scales.
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Can a goldfish and a koi mate?

Both koi and goldfish can be beautiful and they come in a variety of colors. Koi will breed with the goldfish. Some of the baby fish (fry) will be born brown or grey and may turn orange as they get older. These fish will not be pure koi, something that doesn't really matter unless you are really into koi!
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Why is one goldfish biting the other?

Territorial

The most common cause of a goldfish being territorial is if they are jealous of other fish in the tank or if the tank is too small. Territorial behavior is distinguished by chasing and nipping other goldfish away from a certain area in the tank.
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How long is a goldfish is pregnant?

Hatching Time

After release and fertilization, goldfish eggs hatch in two to seven days. In water at 84 degrees Fahrenheit, fertilized goldfish eggs hatch in 46 to 54 hours; in water at 70 to 75 degrees Fahrenheit, they hatch in five to seven days.
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Do goldfish like LED lights?

Aquarium light types include fluorescent, LED, or UV lighting. All of these are suitable for use with goldfish and work well as a permanent lighting system. You want a light that has more of an orange glow than one that has a bright white output as this is gentler on their eyes.
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Do goldfish talk to each other?

Goldfish Can Communicate via Tiny Current Ripples

Even when one isn't looking directly at another, it seems that a goldfish can detect that other goldfish's presence and follow its lead, demonstrating strong coordination.
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