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Do goldfish need a water heater?

Updated: 10/6/2023
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6y ago

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Goldfish are coldwater fish and will do best in very cool water.However goldfish can live with a heater as long as it is set very low:about 60-70 F degrees.Heaters can actually be good for a goldfish tank because it will keep the tanks temperature from changing often though I'd recommend using a chiller if you have problems with the tanks temp. changing.

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15y ago
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15y ago

No. If you leave your tank for about five days to a week, it will become the same temprature as the room. Then, you can slowly introduce your fancy goldfish in to the tank and see how they do. If they start acting 'strangely' or swimming slowly, this is usual as they are just adjusting to your temprature. As Fancy goldfish are just goldfish, they dont really need a heater, but you may put one in if you want! hope this helps :p

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14y ago

If your tank is in an airconditioned temperature controlled place and it is in no threat of freezing over then it should not need a heater if you wish to keep goldfish. It will need a filter though. (Every tank with fish in needs a filter). If you wish to keep tropical fish then you will need a filter and a heater if you do not live in a tropical area.

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14y ago

Goldfish are coldwater fish and should be kept below 70F (preferably below 65F). If you live in a very cold place you may use a heater to keep the water above 55F which is a bit cool for goldfish.

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6y ago

No they are hardy fish and survive through cold tempertures between 20 below and they cant ive next to windows because the sun hurts theyre eyes ive tooken care of fish for 3 years ive expierenced them and how they are you may think they are just dumb fish but watch them for a while and teach them to do things they are actually very intelligent
No. Goldfish do not need water heaters. Only tropical fish need water heaters.

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14y ago

Yes, that is why they are cold water fish. Also, warmer water has less oxygen in it so the goldfish could also suffocate.

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12y ago

No. Goldfish do not need water heaters. Only tropical fish need water heaters.

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