What size tank do you 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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Can 2 goldfish live in a 3.5 gallon tank?

Going by the “1 inch of fish per gallon of water” rule, you can safely keep three 1-inch fish in a 3-gallon tank. This guideline does have its flaws, as it doesn't take the behavior/temperament of fish into account.
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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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What kind of tank do I need for 2 goldfish?

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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Can two goldfish live in a 2 gallon tank?

Despite the popular misconception, Goldfish are NOT suitable fish for small tanks or bowls. They need at least 20 gallons for one fish, and 10 for each additional, and that's the minimum.
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Goldfish Tank Size - How big does your tank need to be?



Is it OK to have 1 goldfish?

Goldfish (Carassius auratus) are social animals and when kept in groups can be seen regularly interacting with other goldfish. Keeping at least two goldfish in an aquarium is recommended to provide companionship and promote activity. Solitary fish can exhibit depression and lethargy.
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Can two small goldfish live in a 5 gallon tank?

Goldfish are beautiful creatures but a 5-gallon tank is too small. Goldfish are big waste producers and water quality can quickly reach a danger zone in a 5 gallon tank. If you want to keep goldfish, consider keeping them in a small patio pond or get yourself between a 20 gallon and 40 gallon tank.
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What is the best size tank for goldfish?

For Common goldfish, Comets and Shubunkins, we recommend a tank measuring at least 4 feet long with a volume of at least 30 gallons.
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What fish can live in a 3 gallon tank?

The glofish we recommend for a three-gallon include barbs, danios, and tetras. Like all other fish, they should not be permanently housed in a three-gallon tank. Their preferred tank size is a 20-gallon. They are compatible with other Tetras and Danios when they move to their larger home.
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How many fish can you put in a 1 gallon tank?

How many fish should you keep in a one-gallon tank? Generally, the rule of thumb is to have 1 inch of fish per gallon of water in your tank. That means that if your fish is 3 inches, the minimum amount of water you should have for that fish alone should be 3 gallons.
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How many goldfish can I put in a 2 gallon tank?

The 2 gallon fish tank is ideal for small or beginner tanks. Smaller than the one-gallon jar, but bigger than a bowl, it can accommodate up to 1 goldfish (or 2 feeder guppies) per gallon and has plenty of room for other supplies like plants and decoration.
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Can a goldfish live in a 1 gallon tank?

They are very hardy and resilient, they don't really require special water care, they do fine in normal room temperature water, and are easy to feed and look after as well. You won't be able to put more than 1 goldfish in a tank, but a single goldfish will do well in a 1 gallon tank.
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What fish can mix with goldfish?

14 Best Tank Mates For Your Goldfish
  1. Goldfish (Carassius auratus) ...
  2. Rosy Barbs (Pethia conchonius) ...
  3. Zebra Danios (Danio rerio) ...
  4. Giant Danios (Devario aequipinnatus) ...
  5. White Cloud Mountain Minnows (Tanichthys albonubes) ...
  6. Dojo Loach (Misgurnus anguillicaudatus) ...
  7. Banded Corydoras (Scleromystax barbatus)
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How many goldfish can you have in a 5 gallon tank?

So, how many goldfish can you have per gallon of water? 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.
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How many fish can I have in a 4 gallon tank?

One Inch Per Gallon

The most widely known rule for stocking a tank is the one inch of fish per one or two gallons of water rule.
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How long does a goldfish live?

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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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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How big do 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 many goldfish can I put in a 15 gallon tank?

15 gallons – two 2 to 2½ inch goldfish. 20 gallons – two 2½ to 3 inch fish. 30 gallons – three 3 inch fish. 40 gallons – four 3 inch fish.
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Do I need a heater for goldfish?

All Goldfish are temperate fish and don't absolutely require a heater, unlike fish like Discus that come from the steamy tropics. But Fancy Goldfish sometimes can't take sudden shifts in temperature like their ancestors can and almost never down to near-freezing.
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Can goldfish live in tap water?

Goldfish cannot live in untreated tap water

Goldfish can only live in tap water when it has been properly treated to remove harmful chemicals. What is this? Tap water contains chemicals that will kill all of the 'good bacteria' in your tank.
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Can a goldfish live in a 6 gallon tank?

NO you can not keep goldfish in a 6 gallon aquarium. Nor should you keep goldfish in a 10 gallon aquarium. For good health and good growth and general well being, goldfish need at least 20 gallons or 30 gallons each.
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Do goldfish need a filter?

Yes. Goldfish, as well as most fish, need a filter. It helps pump oxygen into the water and keeps the tank cleaner for longer.
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Do goldfish need tank mates?

Adding tank mates to a goldfish habitat is really more of a personal decision than a necessary one. Your goldfish will be content as long as they have a clean tank to explore, plenty of room to swim, and an abundant source of food.
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