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How long can fish be in a tank without a heater2007-11-24 23:33:49

I need to move my tropical fish from one tank to another, how long can I have before they get too cold as I need to reheat my new tank with the old heater!

Answers:

if their tropical not long at all a few hours wont hurt try and match the new water with the old water temp.

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keep adding hot water from the kettle to keep temps up

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I believe that would depend on the individual breed of fish. Check with a store that sells tropical fish. If the water gets cold, will the fish become dormant and then be okay when the water warms up? I have Japanese Koi and in the winter when the water gets cold, they go to the bottom of the pond and hibernate. All I need to do is prevent the pond from icing over so the oxygen and carbon dioxide can exchange. When the weather gets warm again, the fish return to normal activity.

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i should think they woul d be ok for about four hours untll there water starts feeling cold ours was without heat for about that time while we was having repairs done to the house

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Depends on what type of fish your talking about, Tropical, Marine ??

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what kind of fish are they?

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Just put in room temperature water at about 78 degrees F and then your water will be the right temperature or close to it unless you keep your house really cold

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i have had tropical fish for years and i have never used a heater. if you are comfortable with the rooms temp. so are the fish.

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not very long 2 days at most i suggest you get a heater fast

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Nuke bowls of fish tank water in the microwave and stir it up well in your tank until it is the right temperature, then add the fish.