Petco Text Logo
Petco Pet Logo

How do I safely add aquarium salt to my betta tank for fin rot?

Updated On September 23rd, 2025

Pet's info: Fish | Unknown - Fish | Male | 6 months and 7 days old

I just purchased imagitarium aquarium salt for my betta. I have never used aquarium salt before and It says on the label that I can combine it with sprinkling in a little bit of food once a day. Does this mean it is safe to add the salt in with my fish in the tank? What process should I take so he doesn't become overwhelmed? Also does this help prevent/get rid of fin rot? Thank you!

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

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

3 Answers

Most Helpful Answer

Image profile

Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on June 15th, 2018

Aquarium salt can be used as a general tonic to reduce stress, improve gill function, treat minor infection and aid in any recovery. Dissolve up to 1 teaspoon per gallon of water in a cup of tank water and gently pour it into the tank. You don't want to use it for more than 14 days in a row. You will need to perform partial water changes to decrease salinity. Use only aged or conditioned water that is temperature matched to prevent stress or shock. Pristine water quality is critical in treating or preventing fin rot and other infections.

Vote icon

2Pet Parents found this answer helpful

Related Answers from Veterinarians

  • Image profile

    Answered By Angel Alvarado, LVT

    Licensed Veterinary Technician

    Published on September 18th, 2018

    A 1 gallon tank is fine for a temporary tank as long as you maintain water quality with regular water changes. You may need to perform a 30% water change every 2-3 days. One packet of Tail and Body Cure treats 10 gallons of water. You'll need to measure out one-tenth (1/10) of the packet to treat a 1 gallon tank. Make sure the water is at proper temperature. Bettas do best between 78 F and 80 F. Low temps can cause stress which can delay healing.

    Vote icon

    1Pet Parents found this answer helpful

  • Image profile

    Answered By Angel Alvarado, LVT

    Licensed Veterinary Technician

    Published on January 20th, 2018

    Maintaining pristine water quality is the best way to manage most illnesses in fish. The addition of plain aquarium salt (NOT table salt). Can also be quite beneficial. Dissolve 1 teaspoon of salt per gallon of water in a cup of tank water and gently pour it into the tank. Treat for 10-14 days then reassess fin condition. Velvet is effectively treated using malachite green. You can find it in the aquarium section of the local pet or fish store. Follow label directions carefully and remove the carbon filter insert during treatment if indicated. It can be used concurrently with aquarium salt. Limit light to 6-8 :ours daily during treatment and increase water temp between 82F and 86F. This will aid in treatment and recovery.

    Vote icon

    1Pet Parents found this answer helpful

See More Answers
image
Have A Vet Question?

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

Sponsored