I just got a good fish today and it died why is that

Updated On May 31st, 2017

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

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The most common cause of death of a newly acquired fish is usually shock or incorrect water quality. Fish tanks should be set up and left running without fish for at least 3-4 weeks to establish a proper nitrogen cycle. There are products that can shorten this time period. If this is not done, there may be high levels of ammonia, chloramine, nitrates and nitrites which can kill a fish. When introducing a fish, the bag should be floated in the tank for about 30 minutes to acclimate the fish to water temperature. This can prevent shock if the water is too hot or too cold. Test your water quality with a home test kit or submit a sample for testing. Most pet stores or aquarists will do this for free or for a nominal fee. Correct any imbalances as indicated. Slowly acclimate any new fish as written above. You can request a consultation to discuss your concerns in greater detail if necessary. Buying fish and starting a tank can be quite confusing initially.

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    Answered By Lauren Kennedy, DVM

    Veterinarian

    There can be many reasons your fish passed away. Most pet stores will replace your fish for no charge if it dies within a certain amount of time. I would also recommend bringing in a sample of the water your fish was in so they can check the pH of the water and make sure it is appropriate for the type of fish you purchased.

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