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My betta fish is always at the top gasping for air. Should I worry?

Updated On September 23rd, 2025

Pet's info: Fish | Betta | Female | unspayed | 0.5 lbs

My betta fish is always at the top “gasping for air” but other than that she’s perfectly fine, should I be worried?

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2 Answers

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on January 22nd, 2020

Bettas will surface to breathe air. This may be normal. Check the water chemistry though. Elevated ammonia levels may drive him to the surface. Check the temperature as well. Warm water does not hold as much oxygen as cooler waters. Bettas do best between 78 F and 80 F.

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    Answered By Angel Alvarado, LVT

    Licensed Veterinary Technician

    Published on February 28th, 2018

    Gasping at the surface indicates poor water quality or low oxygenation. Check the chemistry, especially ammonia and nitrite levels. Ideally, you want them to be 0 ppm. Use only aged or conditioned water that is temperature matched for water changes. This will prevent stress or shock. If the chemistry is fine, check the temperature and consider adding in an air stone or bubble wand to increase oxygenation.

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