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Why is my betta struggling to swim with a curved spine and gasping?

Updated On September 23rd, 2025

Pet's info: Fish | Unknown - Fish | Female

My betta has been having a hard time swimming recently because it looks like she's developed a curved spine in the last few weeks. I've also noticed that her gills are inflamed,, she's gasping for air, and her eyes may be a bit bulged. The only problem with her water recently is a high pH, but I'm working on lowering it. Is there something else that could be causing this?

1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on August 4th, 2018

Recheck water chemistry to confirm 0 ppm ammonia and nitrites with nitrates at 20 ppm or less. A pH of 7 is fine and they can adjust to more acidic water as long as the change is gradual. Temperature should range between 78 F and 80 F. Plain aquarium salt (NOT table salt or epsom salt) can be used as a general tonic to reduce stress, improve gill function, treat minor infection and aid in recovery. Dissolve 1 teaspoon of salt per gallon of water in a cup or two of tank water and gently pour it into the tank. Perform partial water changes every couple of days to maintain water quality. Treat only the volume of water being replaced. Treat with aquarium salt for no more than 14 days then reassess the condition. An antibiotic, such as kanamycin or erythromycin, can be found in the aquarium section of the local Petco if the salt treatment doesn't help. Follow label directions carefully and remove the carbon filter insert during treatment if indicated.

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