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My fish is not breathing and feels hot. Is my aquarium heater broken?

Updated On September 23rd, 2025

Pet's info: Fish | Unknown - Fish

came home from wk at 5pm noticed one of my girl fish lying side down on bottom of tank not breathing but gills still red i put her in a sealed contaner with air stone and plastic wrap around it trying to get her to breath again when i picked her up she felt very hot to the touch heater said 86 degress but she felt very hot like she was cooked to death the other fish are fine i did a water change immedatly filled w/warm water dechorild water how can i get her to breath again

1 Answer

Most Helpful Answer

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Answered By Todd Cecil

Veterinarian

Published on January 15th, 2019

Thanks for reaching out about Grandfish. But it sounds as if she has passed. Placing the airstone while holding the gills open might provide some oxygen, but if the heart is not beating, no circulation. Sounds as if the heater malfunctions, as 86 is fairly warm. Sorry.

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