Betta Fin Rot: Symptoms, Cause, And Treatment

The Betta fish is a famous freshwater fish with beautifully moving tails that may be seen in tanks worldwide.

Keeping these ornamental fish brings a lot of pleasure, but these vibrant creatures are susceptible to health issues.

Betta fin rot is one of your pets’ most frequently observed phenomena. Betta fin rot pictures are a direct reflection of this situation.

If you want to know more about this common health issue in this species, let’s dive into the article right now!

Betta Fin Rot

It’s a fungal infection that slowly gnaws away, destroying the Betta fish’s fins and tail tissues.

This problem frequently happens in small or uncycled tanks due to poor water quality or temperature problems.

Even newly purchased Bettas may have this illness. You should distinguish this disease from fin biting, splitting, or tearing.

These phenomena result from fighting or hooking sharp decor in the tank. So, your fish are still healthy in this circumstance.

However, if you don’t know how to treat fin rot correctly, it may spread to your Bettas’ body, eat their scales, and cause open, open sores.

Severe infections can be deadly to your fish, even with therapy.

fin rot betta fish

Fin rot

What Causes Betta Fin Rot?

Don’t get yourself stressed out! This illness is prevalent in this species and is not always fatal.

Bacteria found in your tank’s water is the leading cause of fin rot in Bettas. These microscopic organisms adhere to the fins of your fish and eat them.

Poor water parameters are also one of the common causes of fin rot in Betta. For instance, the tank water may be below 78°F.

Cold water, high ammonia, nitrate, and nitrite levels all cause stress for these creatures and damage their immune systems.

Moreover, overcrowding in your tank can quickly degrade water quality, cause stress, and result in fin rot.

Another factor might be inconsistent feeding routine, including overfeeding, and lowering immunological health.

A weak immune system can make your Bettas’ fin rot. Your fish may suffer many illnesses at the same time.

What Are The Common Symptoms Of Betta Fin Rot?

Fin rot is difficult to detect in its early stages. White patches on the fins of Betta are the earliest indicators of this ailment.

During the initial stage, white patches will appear around the border of the fins and will steadily worsen.

These white spots are tiny, so most first-time aquarists often can’t detect them until this illness turns into the second phase.

In the next stage, the harmful bacteria start eating away at the fin tissue of your Bettas.

The fins will appear ragged and look like a piece of old cloth with split edges.

However, as shared early, you need to tell this issue apart from biting, splitting, or tearing.

If the infection gets severe enough, it can extend to the fishtail and cause tail rot.

The loss of the hue of bettas’ fins is another acute symptom. This symptom is much more noticeable with a brilliantly colored betta.

It would be best if you additionally kept an eye out for the blackening of the region around the fins’ edges.

The membrane may be destroyed in the extreme cases of Betta fin rot, leaving only their fin rays.

If your fish have another condition, you may notice fungal infections on the fins that resemble white cotton bubbles.

If your bettas develop this sickness, you may find that they become sluggish, which is a frequent sign.

It’s crucial to notice any apparent indications or symptoms of fin rot as soon as possible since it can spread swiftly if left untreated.

common symptoms of fin rot betta

Common symptoms

How To Treat Betta Fin Rot?

If your stunning Bettas are suffering from this illness, here are some of the most practical ways to treat your pets. Let’s take a look!

Mild Case

Check the pH and temperature of your aquarium. The optimal pH range is 6.5 to 7.5. The ideal temperature is between 78 and 81 ° F.

Replace half of the water with new non-chlorinated tap water.

You can clean the tank substrate using a sand vacuum to remove extra food, excrement, and other detritus.

If your aquarium has a filter, clean it inside the aquarium to keep beneficial bacteria alive and remove any old substrate.

Using hot water, clean any tank ornaments. Moreover, it’s best to consider transferring some individuals to overflowing communal tanks.

During the following week, keep an eye on the water quality for indications of recovery or deterioration.

The jagged brown edges will fade when the fin rot is cured, and another fin regrowth will emerge.

Continue to make 25 percent partial modifications as required while keeping an eye on the water conditions.

Moderate Case

It’s better to separate ill Bettas from the main tank and move them to the 1-2 gallon hospital aquarium with fresh conditioned water.

When introducing your fish to another environment, always acclimatize them first.

Discard any old filtration and clean the tank’s current water filtration system to keep beneficial bacteria.

Change the water and wash all decorations using hot water. Fill with filtered water and restore everything.

In the hospital tank, use aquarium salt to treat your fish. This salt can heal wounds, reduce stress, and prevent nitrate absorption.

Dissolve 1 or 2 teaspoons in another container, and slowly pour the liquid and conditioned water combination into the isolated tank.

Severe Case

Take your fish from the aquarium and place them in an isolation tank with clean, warm water.

A bubbler or airstone may be helpful because specific treatments deplete the oxygen in tank water.

Eliminate any carbon from the filtration system if you’re dealing with a standard tank because it will extract the medicine.

Using hot water, empty and sanitize the main aquarium and all accessories.

Reassemble the tank, add fresh purified water, and maintain tropical water temperature.

Always follow the guidelines for administering an antibiotic in the hospital tank.

After treatment, introduce your fish to their primary aquarium and keep the water clean and warm.

If you want to learn more tips, you can watch this video:

fin rot betta treatments


In A Nutshell

That’s all about Betta fin rot that you need to know if you decide to keep some stunning ornamental fish in your tank.

This phenomenon is relatively widespread among these creatures, but it doesn’t always cause death for your pets.

If you know how to treat this illness properly, you can bring back their beautiful tails. Thanks for reading, and see you in the next post!