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    can coldwater fish live in a tropical tank?

    someone said they can but not the other way round. anyone know if this is right?

    11 Comments

    I THINK they can? Not sure, something I would like to know myself. Sorry, not much help I know. But someone on here will know.

    Original Poster

    doesnt the water in a cold tank adjust itself to the heat in your room anyway? cos in the hot weather my room was high 20s, so even just going off this i would think it would be ok

    Is the water heated, you are not making much sense?

    Original Poster

    thesaint;5897250

    Is the water heated, you are not making much sense?



    not in a coldwater tank no, but in a tropical tank its heated to 24c. make sense now?

    i'm pretty sure your right, coldwater fish can live in tropical tanks. Sometimes coldwater will heat up to the same temp as tropical, when the weather is warm

    Technically possible, but much better to give the fish the correct husbandry it needs.

    donnaraine;5897267

    not in a coldwater tank no, but in a tropical tank its heated to 24c. … not in a coldwater tank no, but in a tropical tank its heated to 24c. make sense now?



    So you want to put cold water fish in a heated tank?

    They won't live as long as they should do. If they were meant to live in warm water, they would do so in the wild.

    you need to make sure there getting eniugh oxygen when water is warm it hold less carp need lots

    We have both hot and cold water fish in our tank. We had 2 tanks (one with a heater and one without) but the pump went on the tropical one so we had to put them all in the same tank. We noticed that the temperature in the unheated tank was only 1 degree lower than the tropical one. We have lost one or 2 of the cold water fish since mixing them but we were told that this is because they are a lot slower than the tropical fish so tend to get bitten by them.

    We currently have about 30-40 fish happily swimming together (and have been for 6 months) and wouldn't bother put a heater on a tank again (unless it was in a very cold room).

    KazzyD;5897998

    We have both hot and cold water fish in our tank. We had 2 tanks (one … We have both hot and cold water fish in our tank. We had 2 tanks (one with a heater and one without) but the pump went on the tropical one so we had to put them all in the same tank. We noticed that the temperature in the unheated tank was only 1 degree lower than the tropical one. We have lost one or 2 of the cold water fish since mixing them but we were told that this is because they are a lot slower than the tropical fish so tend to get bitten by them.We currently have about 30-40 fish happily swimming together (and have been for 6 months) and wouldn't bother put a heater on a tank again (unless it was in a very cold room).



    Do you care that the lifespan of your fish is shortened?

    thesaint;5897296

    So you want to put cold water fish in a heated tank?They won't live as … So you want to put cold water fish in a heated tank?They won't live as long as they should do. If they were meant to live in warm water, they would do so in the wild.


    +1

    Too high a temperature will cause the fish's metabolism to increase dramatically, ie it will die sooner. It will also eat more, and be stressed out.

    Just keep cold fish cold, and warm fish warm.
    Thinkfish or thefishforums.net can advise on temp ranges for all fish.
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