Goldfish lying on side, barely breathing, not eating. What's wrong?
Updated On September 23rd, 2025
Pet's info: Fish | Gold Fish | 10 months and 11 days old | 0 lbs
Concerned about my Goldfish. For some time my Fancy Goldfish has struggled to keep upright, I assumed it was because of his large puffy head (bigger than most). Today when I woke he was laying on his side, barely breathing. I gave him his food which usually perks him up, he didn't move at all. He does not show any signs of illness or disease. I have had him for about 3 years now.
2 Answers
Most Helpful Answer
Published on November 12th, 2018
Thanks for reaching out about Tunky. Laying on the bottom of the tank is often associated with swim bladder disease, where the bladder is filled with fluid or infection, and not air, leading to difficulty with buoyancy. As always with fish, test the water quality for pH, ammonia, nitrites and nitrates- correcting any abnormalities. If those appear within normal limits, a visit to a veterinarian with experience in fish, is recommended. Systemic antibiotics should probably be started, which usually mean injections. good luck.
1Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on January 30th, 2019
Thanks for using Petco Pet Education Center, formerly Petcoach! This does not necessarily mean an actual disease or issue. Keep in mind that whenever you have a fish tank, they are going to behave differently and locate themselves in different places in the tank and that does not necessarily mean a problem. If they are eating their food well, they are likely ok. Best of luck!
1Pet Parents found this answer helpful
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