How big will a goldfish get?

According to National Geographic, goldfish are usually around 7 to 16.1 inches long and weigh 0.2 to 0.6 pounds, but can top 5 pounds in the wild.
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How long does it take for a goldfish to reach full size?

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 big do goldfish usually get?

When they are kept as pets in small fish tanks and aquariums, goldfish tend to stay about 1-2 inches long and never grow larger than 6 inches (15 centimeters), according to the DEC. However, in the wild, goldfish often reach 12 to 14 inches (30 to 35 cm) in length.
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How big do goldfish get in a 40 gallon tank?

Since each goldfish generally require an average of 20-gallons of water, 2 to 3 healthy goldfish can live happily in a 40-gallon aquarium, but 50 to 60 gallons are recommended for 2-common goldfish or up to 4 small goldfish.
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How big 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 Big Do Goldfish Get?



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 long do goldfish live for?

Goldfish have a lifespan averaging about 10-15 years, with some varieties living up to 30 years when provided with proper care. Unfortunately, many goldfish do not reach their lifespan potential due to inadequate housing conditions. Housing needs to meet both their behavioural and physiological needs.
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Can 2 goldfish live in a 1 gallon tank?

The general rule of thumb is that you need one gallon per 1 inch of goldfish. The last thing you want to do is have too many goldfishes crammed in a tiny space. Ask any fish owner and they'll tell you that tank size has always been very important. It determines how freely your fish can swim around.
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Is 20 gallons enough for 1 goldfish?

The general rule of thumb is 1 gallon of water per 1 inch of fish. This means a 20-gallon tank is big enough to house 20 small goldfish. It is important for the health and wellbeing of your goldfish that you provide them with adequate space to swim freely.
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How many goldfish should be kept together?

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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Do goldfish get lonely?

However, we can say that it is very unlikely that goldfish get lonely. What is this? 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.
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What size tank does a goldfish need?

Goldfish require a minimum of 20 gallons, and an aquarium of that size is suitable for only two fish. The reason for a goldfish's need for a large set up is because goldfish grow to be anywhere between 6 inches and 2 feet long depending on the type of fish you own.
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How often should you feed goldfish?

Feed 2-3 times daily. It is important to avoid overfeeding goldfish as this can cause indigestion and/or contaminate the tank. In terms of the amount to feed, a good rule of thumb is to only feed an amount that the goldfish can consume in under two minutes or only feed as much as the size of the goldfish's eye.
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How can you tell a goldfish's age?

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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What human food can you feed a goldfish?

You can feed various vegetables like peas, spinach, kale, etc as well as fruits like grapes, orange, watermelon, apple, banana, etc to your Goldfish. Besides, some people also feed oatmeal and cooked rice to their Goldfish.
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Can 2 goldfish live in a 10 gallon tank?

Can two Goldfish live in a 10-gallon tank? Two fully grown goldfish would hardly be able to move in a 10-gallon tank. You can keep two only when they are as small as babies. Once they go beyond 2.5 inches each, you need to transfer them to a larger aquarium if you want them to grow healthy and happy.
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Will goldfish eat each other?

Goldfish by nature are not aggressive, and are not predatory. The short answer would be, "No, they don't eat each other".
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Do goldfish need a heater?

Conclusion. In summary: Goldfish don't need heaters – most of the time. If the conditions of your home or outdoor environment get too cold for either fancy or common Goldfish, you may need a heater. Remember that Goldfish are endothermic, meaning their metabolism is controlled by the external environment.
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What fish can go with goldfish?

With these ground rules in mind, here are our top 10 tank mates that we have personally tested and found to be compatible with goldfish:
  • Hillstream Loach. ...
  • Brochis multiradiatus. ...
  • Dojo Loach. ...
  • Bristlenose Pleco. ...
  • Rubbernose Pleco. ...
  • White Cloud Mountain Minnows. ...
  • Ricefish. ...
  • Hoplo Catfish.
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What is the easiest fish to take care of?

The Top 10 Easiest Fish To Take Care Of:
  • Goldfish.
  • Bloodfin Tetras.
  • White Cloud Minnows.
  • Danios.
  • Betta Fish.
  • Black Molly.
  • Kuhli Loach.
  • Angelfish.
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What are the prettiest goldfish?

The Veiltail is a beautiful type of goldfish that a lot of owners love. When we think of a “fancy” goldfish these always come to mind first. What is this? This breed is known for its very long and flowy fins that dangle and trail behind them when they swim.
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How often do you change water for goldfish?

To keep your fish healthy, you should change at least half of the water in the bowl or aquarium every 3 days.
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Can I put my goldfish in tap water?

Can Goldfish Live In Tap Water? Tap water is the most commonly used water in goldfish tanks. So YES, goldfish can live in tap water as long as it's been treated with a water conditioner first.
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What size tank do I need for 2 goldfish?

Based on the rules above, the goldfish tank size we recommend for two goldfish is: 42 gallons for two Common goldfish. That's 30 gallons for the first fish and 12 additional gallons for the second fish.
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