Petco Text Logo
Petco Pet Logo

My betta fish fought. What can I do to heal their injured fins?

Updated On September 23rd, 2025

My daughter put three betta females together.. They were fighting to the point where fins were lost.. I took the aggressive betta out.. The injured two are together getting along. What can I do to help them heal?

This question includes photos that may contain sensitive content. Click to view.

View more to consider that the photos may include sensitive content.

1 Answer

Most Helpful Answer

Image profile

Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on November 1st, 2018

Maintain pristine water quality. That's the cornerstone for healing and recovery. Use plain aquarium salt (NOT table or Epsom salt) 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. Treat with salt for no more than 14 days then reassess fin condition. Perform partial water changes afterwards to decrease salinity. Use only conditioned water that is temperature matched to prevent stress or shock. Bettas do best between 78 F and 80 F.

Vote icon

1Pet Parents found this answer helpful

image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored