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No you cannot do that. There are special minerals in the salt water that the fish need to survive. Even though there may be some fish that can be in both types in water. Like a dolphin. If you do want a salt water fish you could buy sea salt and add it to your aquarium.

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14y ago

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Why marine fish cannot survive at fresh water aquarium?

It is about osmoregulation. Salt water fish has some level of salt in its cells, which is low in concentration than marine water and more than the freshwater. If you put a saltwater fish in fresh water, excess amount of water will enter the cells of the fish and the cells rupture. This is why salt water fish cannot survive in freshwater.


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What best explains why freshwater aquarium would be a dangerous habitat for saltwater fish?

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Depending on the type of fish, Freshwater or salt water. It also depends on the disease. I know that freshwater fish can have fungus on them. But I'm not sure about salt water. Cheers! -Sarah Depending on the type of fish, Freshwater or salt water. It also depends on the disease. I know that freshwater fish can have fungus on them. But I'm not sure about salt water. Cheers! -Sarah


Are glo fishfresh water fish or salt water fish?

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What is a freshwter fish?

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Why do you have to put salt in the fish tank water?

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