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How to Spot and Treat Common Betta Fish Diseases

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Bluel beta fish swimming in tankKeeping a Betta fish is one of the more colorful experiences in the fish keeping world but it can also be particularly challenging. Unlike other pets, keeping a Betta fish can be frustrating because your fish cannot communicate its needs. There are a number of common Betta fish diseases. Find out how they can be identified and what should be done to treat them. Read on to find out what signs you should be looking out for to ensure that your Betta fish does not get sick.

Timing is Everything

There are a wide variety of Betta fish diseases and while it may seem to the untrained eye that the symptoms of these diseases are similar, often times they can be distinguished when you know what you are looking for. Becoming educated in regards to the health of your Betta is one of the biggest steps that you must take in order to ensure that your fish remains healthy. Something else that is just as crucial however, is timing. Knowing what to look for when your Betta fish is feeling under the weather is important but so too is having the appropriate medications on hand in order to treat your Betta as soon as possible. Many of the common Betta fish diseases are fast-moving and it is important that once you ascertain that your Betta is in need of medical care, that you have the appropriate treatment on hand in order to stop the progression of the disease in question. Timing is everything when it comes to treating any Betta fish disease.

Feel free to read the entire article or jump to the section below:

Betta Fish First Aid Kit | Betta Fish TreatmentsRecognizing Signs of a Sick Betta FishIdentifying Common Betta Fish Diseases | Prevention

Create Your Betta Fish First Aid Kit

Like most pet owners you are likely to already be attached to your Betta fish which means that you are prepared to care for it like you would any other pet, this means that you should always have a first aid kit handy for your fish. It may sound absurd to create a first aid kit for a Betta fish but the truth of the matter is that the medications most often required to treat Betta fish diseases are not available in most pet stores. If the time comes that your Betta fish is ill we have already discussed the importance of timing and this means that mail order medication for your fish’s treatment may take too long to arrive in order to treat your fish before it expires. As a responsible Betta fish owner you should always have a basic first aid kit available to treat the most common Betta fish diseases.

How to Choose the Best Betta Fish Tank

What Should Be Included in a Betta First Aid Kit?

To make things simple a number of Betta fish experts actually sell premade Betta fish first aid kits that can be purchased online; however, if you choose to put together your own first aid kit you should think about including the following products:

BettaZing or Bettafix

Editor’s Pick
BettaFixBettaFix

BettaZing and BettaFix are anti-parasitic, anti-fungal and anti-protozoan medications that are great when used as a preventative medication to prevent the development of clamped fins or velvet fins. This medication should be applied as a preventative measure any time you acclimate a Betta to a new environment or anytime you add a new Betta fish to your tank.

 

Kanamycin

Editor’s Pick
Kanaplex Branded KanamycinKanaplex Branded Kanamycin

Most top of the line fish stores will carry Kanamycin, an antibiotic that is most commonly used for more serious bacterial infections that your Betta fish may contract.

Tetracyclin

Tetracyclin is available from a number of pet stores and is also used as an antibiotic to treat bacterial infections. Where Kanamycin is used to treat more serious bacterial infections, Tetracyclin is used more often for less serious bacterial infections.

Ampicillin

Ampicillin is another antibiotic worth carrying in your Betta fish first aid kit and is available in specialty fish stores as well as online. Ampicillin is used for gram positive infections, some gram negative infections and pop-eye.

Jungle Fungus Eliminator

Editor’s Pick
Jungle Fungus ClearJungle Fungus Clear

Jungle Fungus Eliminator is an anti-fungal treatment that can be purchased online or from fish specialty stores. This treatment is generally used for a number of fungus infections and is particularly useful to keep on hand for any Betta fish owner.

Maracin 1 and Maracin 2

Maracin 1 and Maracin 2 come in hard tablet form and are both anti-fungal and antibiotic treatments. These medications are utilized when your Betta fish has contracted a mild infection like fin rot but they are not as effective as some of the other medications listed when it comes to the more serious infections.

How to Treat a Sick Betta Fish

Chris Simms from Aquatic Central in San Francisco, CA explains how to treat a sick Betta fish. You need to identify the illness (fungal ailment) and administer a treatment (curing the fungus).

Recognizing Signs of a Sick Betta Fish

Green betta fish swimmingThe first step in treating any Betta fish disease is to recognize when a Betta fish is sick, this can be particularly difficult due to the limited communication that Betta fish can provide to their owners. There are, however, behaviors that healthy Betta fish exhibit and the first sign of a potentially sick Betta fish is a change in these behaviors. Below are some signs that you should watch for that may suggest a sick Betta fish:

  • A fish that stays at the surface of the water in the corner of its tank.
  • A fish that lies at the bottom of the tank and only comes to the surface to breathe.
  • A fish that does not eat, does not show an “excited” reaction to being fed or a fish that spits out its food. It should be noted that some Betta fish pellet food can come in pellets that may be too large for your Betta fish, a healthy Betta may spit these out and wait for them to become soggy before trying to consume them a second time – this does not indicate a sick fish.
  • A fish that appears to have “lost” its color or appears to be a much less vibrant colorful shade.
  • A fish that appears to be scratching itself by rubbing against items in its tank.
  • A fish that appears to have unusual sores or markings on its body that were not present previously.
  • A fish whose tail or fins are no longer spread out and have the appearance of being unhealthy, closed or clumped together.
  • A fish with gills that do not close completely due to inflammation, inflammation can also cause the gills to appear red in color.
  • Swollen or protruding eyes.
  • A swollen stomach or “hollow” appearing stomach.
  • Raised scales that give your Betta the appearance of having a prickly texture.

A Betta fish that exhibits any of these signs should always be isolated from any other fish if it is being kept in a community aquarium because a number of common Betta fish diseases can be easily communicated from one fish to another. Having a disease pass from one fish to another is not only unfortunate for the fish involved and more expensive to treat but it is also a way for the disease to be contracted a second time by a fish that has already been effectively treated. If you have a Betta fish that has become ill that is kept in a community tank make sure that you do keep an eye on other fish in the tank for any signs of the disease in question being contracted by them.

ALWAYS wash your hands with an antibacterial soap if you handle a fish that has any type of illness or disease to ensure that you do not spread the disease from one fish to another – not to mention that this is the sanitary thing to do whenever you handle your fish.

Identifying Common Betta Fish Diseases

Only a licensed veterinarian or fish expert can identify particular Betta fish diseases accurately in order to treat them; however, a number of Betta fish diseases are so common that they can be readily identified by someone who has experienced them before or knows what to look for. With that said however, this information should not be taken as professional advice or utilized for diagnosis to treat a sick Betta fish.

Fin Rot and Tail Rot

Fin rot and tail rot are often classified together however, they may or may not both occur together. Tail or fin rot tend to be contracted by a Betta fish through contact with dirty water so it is important to ensure that you maintain a clean and healthy Betta fish tank. Fortunately for the Betta fish that contracts tail or fin rot damage done to the fins or tail is repairable if treatment is issued in a timely manner and fin and tail tissue will regrow (although it may not be as resplendent as it previously was.) A fish with fin or tail rot will exhibit a variety of symptoms but the most obvious are clumped fins or tail tissue or fin or tail tissue that appears to be disintegrating and disappearing little by little. This type of Betta fish disease should be treated with Ampicillin or Tetracycline and your Betta fish tank should be thoroughly cleaned and clean water should be used in the new tank. Ensure to treat the new water before filling the tank. A fungus eliminator should also be utilized in the new tank to ensure that your Betta begins recovery. It is important to be consistent with tank cleaning and water change when treating fin or tail rot, this should be done once every three days or so with medication being added with each water change. Once your Betta fish no longer shows signs of losing tissue on their tail or fins and begins to show signs of new growth you can resume a normal tank cleaning schedule.

Ich

Ich may sound funny but there is nothing funny about this parasite! This parasite is most commonly contracted by your fish through frozen live food and most commonly presents as small white dots on your fish’s body, head, tail and fins. Ich can be prevented by ensuring that you add a small amount of aquarium salt and Aquarisol to your Betta fish tank when maintaining your tank; however, if your fish does contract this parasite it should be treated quickly. Fishes with ich not only present with small white dots but they also appear to be scratching themselves against items in the tank and may become less active than normal. Ich is an extremely contagious parasite and if one fish in a community tank has it there is an extremely high likelihood that other fish have it or will develop it so you should always treat the entire tank. Ich is most commonly treated by raising the temperature of the Betta fish tank; however, this can only be successfully done in tanks lager than 5 gallons since smaller tanks can quickly overheat killing your Betta fish. In larger tanks, temperatures of 85 degrees will quickly kill off the ich parasite. If heating the tank is not an option because of a smaller tank you should completely clean your tank, replace all water in the tank and treat with Aquarisol and aquarium salt. It is also commonly recommended to put your Betta fish in a holding container after cleaning the smaller tank and raising the temperature of the water to 85 degrees to kill any remaining parasites without risking overheating your Betta fish.

Fungal Infections

Fungus is common in tanks that are not treated with salt and Aquarisol when water is added. Once a single fish in a community tank contracts a fungal infection there is a high likelihood that another fish may also contract the fungal infection so it should be treated quickly when spotted. Betta fish that have fungal infections can appear to be a much more pale hue of their normal color, they may not be as active as they usually are and their fins may have a clumped appearance. A fish with a fungal infection can have patches of a white cotton-like appearance on their body. Eliminating fungus should begin with a full water change and treatment of the new water with a fungus eliminator, this type of medication will cause the water to change to a gold-like color, this is normal. Every three days the water in the tank should be replaced and a new dose of fungus eliminator should be administered. Once all visible signs of the fungal infection have disappeared ensure that you treat your tank with BettaZing or Bettamax to treat any trace signs of the fungal infection that may remain.

Popeye

Popeye is one of the more noticeable diseases in Betta fish because as its name suggests, a fish with this disease will appear to have one or both eyes protruding from the head. Most commonly popeye develops from dirty tank water because it is a bacterial infection; however, popeye can also be the result of a much more serious illness. Most commonly when popeye does not respond to treatment it is a symptom of a much more serious disease like tuberculosis which is incurable and your Betta fish will be unable to survive. For the fish that has contracted popeye as a result of dirty tank water however, treatment can quickly remedy the bulging eyes that result from this disease. Treatment for popeye should be immediate in order to prevent any long-term damage or loss of sight in your fish. To treat popeye clean your tank and do a complete water change and add Ampicillin to the clean water. Clean water should be changed every three days and medication should continue to be added until one week after your fish’s popeye symptoms disappear.

Advanced Fin and Body Rot

Advanced fin and body rot is a case of regular fin rot that goes on for far too long. When regular fin rot is not treated or when it progresses extremely quickly it can be extremely difficult to stop. A fish with this disease will experience a loss of fin and body tissue as the rot progresses. Once the rot progresses on to body tissues there is very little that you can do to help your fish as the bacteria quickly eats your fish alive. In cases of extreme fin or body rot you may begin to see small bones protruding from your fish’s body. If the affected fish is not treated in time they will die quickly but this death likely causes the fish to suffer a lot of pain. It is occasionally possible to control the progress of advanced rot and the fish can continue to live while being treated.

Stopping advanced fin and body rot is difficult and you will need to completely change your fish’s water and combine a number of medications designed to treat fin rot. In cases of severe rot you may want to over medicate the water and then continue cleaning your fish’s water every three days adding new medication each time. Once your fish shows new growth in the fins and on the body you can switch to a medication designed to prevent bacteria from growing in the water again.

Velvet

Velvet is a parasite that can be prevented completely by adding aquarium salt and water conditioner to your fish’s tank. Velvet is particularly contagious and if you have shared aquarium nets between tanks and have a case of velvet, you will want to ensure that you treat all of your fish for velvet. Velvet is completely treatable but it can be difficult to see in your fish. In order to check your fish for velvet you will want to shine a flashlight on your betta and if they have velvet you will see a fine mist over their body that looks gold or rusty in color. Betta fish that have velvet will clamp their fins to their body, will lose its color, will not eat normally and they will scratch against the gravel of the tank.

Velvet is a parasite and it can be treated. If you have a number of fish in a tank and one shows signs of velvet, it is best to treat all of the fish due to how contagious velvet is. A medication called BettaZing is effective at eliminating velvet completely.

Dropsy

Dropsy is seen often in betta fish and it is particularly fatal. Dropsy is most often contracted through the feeding of live food. Not a lot is known about dropsy other than the fact that it comes from feeding contaminated food. A betta fish with dropsy will present with raised scales as a result of a buildup of fluid underneath the fish’s scales. The buildup of fluid is the result of kidney failure and just as with any animal, once the betta fish’s kidneys fail, the fish will die. The bacteria that cause dropsy are very contagious and it is these bacteria that cause kidney failure. Spotting dropsy in your betta fish is relatively easy, your fish will have puffed out scales that look similar to pine cones and it may also appear to have a big bloated stomach.

There really is no known cure for dropsy but a good preventative is to avoid feeding worms to bettas. It is important if you have a betta that presents with dropsy, that you keep it away from other fish.

Swim Bladder Disorder

Swim bladder disorder is not contagious but it is a common illness among betta fish that comes as the result of overfeeding. Young bettas and double tailed bettas are susceptible to this illness. The swim bladder of the fish is located between the belly and the spine of the fish. When the betta fish has a swim bladder that is too short they will not be able to swim horizontally. When a betta fish has a swim bladder that is swollen they will float on one side. Many times when fish have shorter swim bladders they will prefer to lie at the bottom of the tank because swimming is too difficult.

A betta fish with a swim bladder disorder can recover by themselves but it is also important to pay attention to how much food you are feeding your fish. You should know that swim bladder disorder does not hurt the fish and at any point it can recover from this condition so you should not kill your fish out of “mercy.”

External Parasites

It is possible for a betta fish to contract external parasites in the pet store or from the foot that they are being fed or from other fish being introduced to the tank. It is usually possible to see parasites by looking closely at your fish. In the case of some parasites like anchor worms, you will have no problem spotting them. A fish that has external parasites will show symptoms of needing to scratch itself against anything it can find and it will not behave as it normally would showing signs of being uncomfortable in its tank.

If your betta fish shows signs of external parasites you will want to change out 70% of your fish tank’s water. Changing out a percentage of your fish’s water will help to reduce the population of the parasites and their eggs but it will not remove them all completely so it is important to treat the remaining water. After replenishing the water you will want to treat it with BettaZing, a product designed to clean the water and kill the remaining parasites and their eggs.

Betta Fish First Aid Kit Infographic

This infographic made by The Aquarium Guide summarizes many of the the items above as well as some additinonal solutions for how to help with your Betta’s diseases.

Betta Fish First Aid Kit Infographic

The Importance of Prevention

Prevention is the most important part of Betta fish diseases because prevention is much easier than treating or trying to cure Betta fish diseases. Most Betta fish diseases require a large amount of work in order to save your Betta fish from succumbing to the disease that they have contracted, most often this involves cleaning the tank and replacing your Betta’s water once every three days in addition to the application of medication. In most cases Betta fish diseases are easily preventable by maintaining a clean tank and feeding a healthy diet. There are, however, occasions where a Betta fish is purchased with a pre-existing disease or condition and in this case treatment is required in addition to taking preventative measures in the future. It is important to note that while prevention is the preferred method of “treatment” it is not always possible but purchasing a Betta fish with a pre-existing condition does not mean that your fish is doomed to die. As it has already been mentioned, the majority of these diseases are completely curable when treated appropriately and often times purchasing the fish that appears to have a pre-existing disease may be the only chance it has at survival. If you feel up to the challenge of Betta fish first aid, why not give a sick Betta a chance and put your fish doctoring skills to work!

Is your Betta fish showing signs of sickness? Maybe someone else’s Betta is experiencing similar symptom’s and you can get answers and advice below. NOTE: While we have provided some information about common illnesses, we are not a certified fish doctor, so if you are experiencing issues with your Betta fish please contact your local pet store or seek professional help.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.

Amy grew up in England and in the early 1990's moved to North Carolina where she completed a bachelors degree in Psychology in 2001. Amy's personal interest in writing was sparked by her love of reading fiction and her creative writing hobby. Amy is currently self employed as a freelance writer and web designer. When she is not working Amy can be found curled up with a good book and her black Labrador, Jet.

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175 Comments on "How to Spot and Treat Common Betta Fish Diseases"

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Justin
Justin

My betta fish has puffed out eyes and he isn’t eating, also he seems to having trouble swimming upright. Please help me if you can!

Linda
Linda

I noticed a small blue spot on my betta a couple weeks ago. Now he has another, slightly bigger one. He seems otherwise healthy. Any ideas?

Dornish12
Dornish12

My female betta looks like she might have fin rot but she also appears to have white stuff on her body. I’d say it’s mild to moderate fin rot, I was planning on getting aquarium salt today to treat it but now with the white stuff I’m not sure what it is.

Margaret
Margaret

My male betta has a large bump on tn side of his face. He is slightly dis colored in this area. When I first got him, the bump was there but I’ve noticed it growing in size. Can anyone help me figure out what this is? Or if it’s natural or not? Any input is appreciated!

Erika
Erika

I have had a blue Beta, Ted for about 2.5 years. He is always very active and it was work to catch him to change his water. I’ve recently noticed that he isn’t active anymore and will lay at the bottom of his bowl. His fins seem to be clumping too… Any ideas?

Claire
Claire

I woke up this morning and he was swimming, than an hour earlier, my dad came up and looked in the tank, he said he thinks chester died! We moved him to a bowl and added conditioner. We have been having bad luck with our fish, but never chester! Yesterday, we lost 3 tetras and the day before that, we lost a platy, we have 2 platies left and 1 tetra, and 4 ghost shrimp. please help, I think he’s dead

Jimmy
Jimmy

I feel sorry for you

Margo
Margo
I just lost 4 female betas in a week. One of them I’ve had for 2 years Gracie bloated and soon died before I knew she was sick. Bobbie all of a sudden did not have a top lip. Then her eyes buldged and her skin started to shed. Hagitha and Betty I found in their caves. Betty was new. I keep a clean tank but the algae food for my bottom feeders is like a slim ball after a day. my shrimp and bottom feeders are fine. I just don’t know what happened. Please anyone any advise. Total tank… Read more »
Alison
Alison
Hello, Our Beta, Fred is about 1 year 9 months old. He has the cottony patch on his underbelly, we have been giving him about 6 drops of Pimafix, by API (Treats Fungal Infections Active Ingredient: Pimenta Racemosa 1.0%It says it’s a “safe way to treat fungal fish infections, internal and external bacterial infections, treats fungus or cottony growth and body fungus.”) This is what we bought at Petco on Wednesday Jan 8th, they said it would help but the white patch on his tummy is getting bigger and looks like he has an open sore now, tiny, but bright… Read more »
Sandra
Sandra
I have a dragonscale betta whose been healthy. 4 gallon tank with pump and heater. He’s alone. I’m meticulous about his water conditions. In December I noticed small lump by the side of his right gill. It’s gotten bigger and I tried Lifeguard to see if it might be sufficient to reverse what I was seeing. There was no sign of reversal and this lump continues to grow. It’s not affecting him at the moment as he’s eating and swimming normally. I’ve taken a pictures of this growth but in the picture it appears much darker than when viewing him… Read more »
Isha Waldgrave
Isha Waldgrave

Hi….there’s fine sand particles trapped between the scales of my betta. Why should i do?

R Anan
R Anan
Someone gave us a betta fish and we are clueless about its care. We purchased a 2.5 gallon tank, a water heater and treating our betta with bettafix but she is loosing her tail and has white spots on tail and nor on body. Growing quickly. We took it to pets mart yesterday and they said betta fix will help but it is not helping. I feel so bad. I was insistent on not accepting the fish but the gentleman forced us. I do not know anything about fish and I feel terrible. Someone plese help. I do not want… Read more »
Britt
Britt
If your Betta has white spots you need to treat it for Ich asap. Bettafix is a mild and all natural treatment that helps heal the fins and body however it will not cure fungal or parasitic infections. Ich is a very common & very contagious parasite caused from a combination of poor water conditions, temperature fluctuations& stress. Petsmart and Petco sell various Ich treatments. It is typically a liquid bottle & has instructions, including taking the active charcoal (filter pad) out of the filter- you’ll need to follow the instructions carefully (do a 25% water change prior to treatment)… Read more »
Emma Hirsh
Emma Hirsh

You should just google it a few times, it sounds like he’s got finrot and also a bad case of columnais. Also, you should have done your research, even a cat or dog needs researcher before buying, especially exotic pets like betta fish.

You should google the symptoms and if anything comes up research the sickness and the cure,

Classified
Classified

My fish has a string like thing on its under side please help

Just here to help
Just here to help

I do believe that it’s not anything to worry about, im not a fish expert but I have had multiple fish and know that it could quite possibly be waste(poop) from your fish. But do not ride on my knowledge because once again I’m not a fish expert.

Emma Hirsh
Emma Hirsh

If you don’t know that much about betta fish, you should research a lot more. That doesn’t mean hitting the books, it just means you should do some googles searches about tank size, heater, filter, water conditioner, light, etc. if there are two of them that means they are just find and you should calm yourself, if there is one of them something is wrong.

Cindy Starner
Cindy Starner

I left on a vacation and when j came back the water was disgusting. My beta seems to have lost half of one fin also he is laying on his side and isn’t eating all of his food. What is wrong

Cathy
Cathy

I inherited a betta fish that is probably around 3 years old and has always been kept in a fish bowl. Recently he has been staying only at the bottom of the bowl and has lost some color. Is it too late to get a tank and try move him? And if so how should I do it? I understand that fish should not be kept in a bowl.

Kay

If the bowl is at least 1 gallon then your fish should be fine. They generally dont live more then 2-3 years in the first place so if he/she shows no physical symptoms of disease it could just be old age and that his time is almost up. Its very rare for them to live longer then 3 years, 5 is usually their max life expectancy. I mean you could try BettaFix, a bigger tank, new food or more toys/decor; but it’s most likely just old age.

Honeydew
Honeydew

I have a betta I just recently gotten, a rose petal male. He’s white body red tale and his top dorsal fin sticks up and is kept together, not flared out. He does swim more now, at first he wouldn’t swim much at all. I have him in a 4 gal round tank, and he was like this when I got him, but his fins are a little ripped. He seems healthy with all the swimming he’s doing but I’m not sure. Help!

Emma Hirsh
Emma Hirsh

It sounds like he is healing from fun nipping or fin rot. If you don’t be know though, don’t ask strangers on the internet. Just google it and if, like, the three top sources say the same thing it’s probably true

Natalie
Natalie
My betta fish that I got almost 2 weeks ago might have the start of a minor infection as he is missing a few scales on the sides of his body and on his head, and I noticed that today he started rubbing up against my clumps of dwarf hairgrass like he’s trying to itch himself. Otherwise he seems pretty healthy: swims everywhere, explores every part of the tank – especially areas he can’t fit because he’s too big (even the small shrimp cave meant for my Ghosties and that might be where he knocked a few scales off), he’s… Read more »
Jaciena
Jaciena
I purchased a blue bodied and white fined male half moon about a month or more ago. I checked him for any abnormalities as I fed him today and found he had some red brown spots or dots on him,one on his gill plate area, and 5 on his back. He is eating eagerly like he has since I bought him. He flares up at the male in the tank next to his.he rests behind his plant like he used to in the tank he was in previously. Was recently moved into a beta tank from my 30 gal .… Read more »
Kristin Smith
Kristin Smith
I have had my half moon betta for a few months now, he was a beautiful red color and now he’s starting to look a bit gray in the body and a silverish purple on his face. He sits at the bottom of his tank in the corner and only comes up for air or to nibble at his food. He barely eats and he lies on the rocks a lot. He is my third betta that I have had and I don’t want him to die. I don’t know what medication to buy. I have cleaned his tank and… Read more »
Grace
Grace

Did either of your fish recover? Mine has been doing the same for a week now.

Meridith
Meridith

My son’s betta is doing the same! I’ve changed the water, used betta fix, fed him less and still nothing.

Mary
Mary

I need help my betta female started acting weird. I’ve noticed she’s gotten white spot on her head and around her right eye. Can u tell me what’s wrong? Is it fungus or ich? What can i do for her I’m really worried.

Bob day
Bob day

If she has white spots on her it’s probably ich. There are drops you can use to treat ich

Brenna underwood
Brenna underwood
I’ve had my betta around half of a year. He used to be lively and energetic, and was quick to greet people as they walked by his tank. It seemed like he knew when someone would come in the room, he would swim around to the side that the person was on. Now, its not quite the same. He has been hanging out in one destined spot near the top, or inside his Spongebob pineapple house. And when he notices someone approaching the tank, his face flairs up like he’s angry. I have noticed his sides are turning white and… Read more »
Shanik Acevedo
Shanik Acevedo

I got a beta fish and I just noticed that he has a white lump on he’s body. I have read that it might be a fungal infection or a tumor. I clean he’s tank and everything because some of the rocks started to get like a brownish color. I clean he’s tank every 2 weeks. Help please!!!

Posi our Betta
Posi our Betta
Prior to Posi, we had a betta who lived for over 4 years, devastated by his loss we did not get another betta until we fell in love with this little guy 2 months ago. He is in a 2 gallon tank, 78-80 degrees, strips show everything good. About 3 weeks ago he developed a white spot by his right eye, after a lot of research we treated him for fungal infection with no results. He’s been active like nothing is wrong only to find out today that the spot has become extremely big. We do not know what else… Read more »
Marina
Marina

My 3 bettas are in a 10 gallon sorority, and when you shine the flashlight on them they have gold rustic color on their belly. I haven’t seen them scratch on the rocks or the plants, their fins are also are not clamped. What should I do?

Cassandra
Cassandra

Hey guys. I just got a Betta yesterday and noticed that his mouth is completely white. I thought it was normal when I bought him because his fins are naturally white but I’m worried it might be mouth fungus or something similar. He is full of energy and is eating fine even though I’ve had him less than twenty four hours. The white is only on his mouth and there are no tendrils or fuzz to indicate fungus. Like I said, it just looks like his mouth is white.

Mary Croxen
Mary Croxen
My Betta fish is blue with two red fins in the front of his body, the last week the fins under his belly are getting a light redish color and I don’t know why. I’m worried about him, please help with any advise. He lives in a 5.5 gal tank, I keep LED lights on 8 hours a day, he has a filter (I use plants as a buffer to soften the force of the filter). He has a heater, I keep the temp just under 80 degrees at all times. He has two silk plants and a gravel bed.… Read more »
Katie Michelle
Katie Michelle

I’m not sure about the reddening of the belly, but a fish tank should never have a 100% water change unless the tank has contracted an unwanted bacteria or fungus. you’re completely erasing your good bacteria and tank chemistry every time you do this, even if you do use the salt & stress zyme.

Ashley
Ashley

Is my betta fish supposed to have like yellow dots on only its head. I’m really freaking out and I don’t know what to do! Please help me!

SJ Himes
SJ Himes

My betta cut himself on a tank decoration (it was sold as betta safe, I have since removed it). The cut is deep enough I can see flesh. He is swimming well and feeding, but I am worried he may get an infection. What can I do?

Wesley
Wesley
Hi! I got my crown tail betta (bubbles) about 2 months ago and he was BEAUTIFUL! He was blue with a red tail! He is still colorful but not as vibrant as before. I change his water every 2-4 days and I add a declorinator, he has a plastic plant & a fish bowl. I feed him betta pellets which he doesn’t eat. He has a pink fungus/growth on his stomach area and it is getting bigger and it’s getting white cuz on it. It doesn’t match any of these descriptions. I’m really worried as he isn’t as active as… Read more »
Jas

Hi my Betta either stays at the surface of the water or lies at the bottom of the tank, only coming to the surface to breathe. He doesn’t seem interested in his food, and its head is turning black. What should I do?

Debra
Debra

I have a beta who suddenly developed bloating on both sides of his neck. What can I do?

Candice
Candice

So I have this white short fin male betta can’t remember what kind he is but I have had him for a while and now he is getting these black blotches and one of his eyes turned black, he seems like he can still see but I don’t know how to fix it. I have him in a treatment for fungus but I don’t think it is helping, any recommendations?

Cathy Wiley Lucero
Cathy Wiley Lucero

How much Epson salt do u need to put in a 10 gallon tank to treat swim bladder?

berthana
berthana

Okay so I have a betta fish who’s stomach (or bladder?) area is swollen on both sides, his top fin is slightly clamped and I’m not sure what this is or how to treat it. Please let me know if you have an idea of what this might be? Thanks!

Nichole
Nichole

I have a 3 gallon tank with a filter I am seeing this rainbow color kinda thick layer on top and my beta wont eat his food? Any ideas?

Bob
Hi. I have a young female crowntail betta that I just got a month or two ago. A few days ago I noticed that she was only floating at the top of the surface, and not taking much interest in food, which is unusual for her. I also noticed that her fins were staying clumped up, and today I saw some yellow almost pollen looking dust/ stuff on her had, back, and fins. I thought she just needed a water change, but now I am really worried because little Hoshi remains virtually unresponsive. I treat her water with a water… Read more »
Jaciena
Jaciena

Sounds like velvet. Check this link for information on what it is and how to treat it. http://www.bettatalk.com/betta_diseases.htm

Lena Jones
Lena Jones

I have a King Betta that has recently developed a hole on the front part of his gill and just that part of his head is a bit swollen too. Any ideas on what the cause could be? He’s in quarantine now from the other fish who are just fine.

Lena Jones
Lena Jones

I have a King Betta (Bruce). He’s normally all friendly and coming to the glass for meet and greets and is a pig. About a week and a half ago I spotted this little white worms in my tank (planarian). I did a complete tank/water change. Took the tank outside bleached, scrubbed thoroughly and dried it out. Now Bruce has a hole in one of his gills towards the front and that side of his face is swollen. He’s in quarantine now from my other fish and they’re fine. Any ideas on fixing this issue?

Melody Love
Melody Love
I just came home to my betta fish dead at the bottom of the tank with cotton like mildrew over the head eyes and half the upper body! He was one of my first fish so I wasn’t sure what signs to look for in noticing your fish is sick, but after reading here I see there were clues and I wish I did research before I killed him. A few weeks ago I noticed he wasn’t swimming as much and wasn’t eating that much barley anything, couldn’t swim well and was floating to one side more. I thought it… Read more »
Sadie Cornelius
Admin
Sadie Cornelius

Melody, so sorry to hear about Ruby! Sometimes the signs and symptoms of Betta fish diseases are not easy to see or spot so I’m sure you did everything you could have to have saved his life. Depending on how long you had him it could have been a result of age as male Bettas usually live between 2 and 4 years.

aron pker
aron pker

My fish just died and he had no strength to swim up and there were brown spots in his sides.

Sadie Cornelius
Admin
Sadie Cornelius

Aron, so sorry to hear about the loss of your fish!

Dawn Berezoski Fetterman
Dawn Berezoski Fetterman
I have had a male betta for about a year. He is in a 5 gallon tank, Floramax substrate, a few live plants, a resin bridge, filtered and cycled. Heated to about 80-82. I test the water with my API freshwater master test kit. Ph is 7-7.2, and ammonia, nitrates, nitrates all register zero. He has had some issues, an eye with what looks a scale over it, and then some kind of thickening in his ventral fin, more towards the caudal area. The scales running from about midsection of the body vertically look a little raised, but just in… Read more »
Jo Nottelling
Jo Nottelling

I have a pure white male Betta. He is the only fish in the 5gal tank. Sometimes he has streaks of blood in his fins. His behavior is never effected, and he does not show fin rot. Today he is showing a lot of blood in his fins still acting normal. Any ideas? I was going to go test the water but the pet store is closed now due to it being Sunday.

Alpha
Alpha

I just got my betta a couple months ago and he has always had a bubble like white lump on his face but just recently he has gotten another one on his side and I don’t know what it is or how to treat it it’s hard to describe so I have attached links to his pictures showing the lumps.

https://1drv.ms/i/s!AlfcsCc6tYGRgXew0mg_KmJj1QX4
https://1drv.ms/i/s!AlfcsCc6tYGRgXmL3MuK2r-Jviv3
https://1drv.ms/i/s!AlfcsCc6tYGRgXorGkQXF7MaXn0Q

Steph Lombardi
Steph Lombardi

Got a betta fish on Monday. It’s now Friday and showing signs of fin rot and infection. I removed him from the tank today while I boiled the rocks and decor and thoroughly cleaned the tank. Replaced the water, treated with water conditioner and let the filter run while I ran to petsmart. Got bettafix, treated the tank and returned the fish to the tank.

Fingers crossed he’s still swimming tomorrow. He’s not looking too good

Sadie Cornelius
Admin
Sadie Cornelius

Steph, sorry to hear about your new fish but hopefully the Bettafix will do the trick!

Steph Lombardi
Steph Lombardi

He died a few hours later

Sadie Cornelius
Admin
Sadie Cornelius

Steph, we’re so sorry to hear!

Marissa
Marissa

My beta is displaying some forms of color change (slightly duller in color), and she also has a white speck under her abdomen, but it doesn’t look like ich, what should I treat her with? I’ve been changing the water in her bowl every couple of days or so. Could it be a water temperature issue?

Gracie
Gracie

Hey guys, I’m a new beta fish owner and he seems to be having swim bladder disorder…is there a way I can get rid of it and prevent it from coming back. He had is once before but then he got recovered. Now, he got it again. Please help!

Victoria
Victoria

Hi, my beta fish that I have had for about one or two years is not eating anymore. I’m saw a spot and I think his fins are less flared but I don’t remember what they looked like before. My parents are telling me that there is nothing I can do but I don’t want him to die. Please help!

Victoria
Victoria
Hi! I have a crown tail Betta that I have had for a year now, he has shared his tank with an algae eater (a little aggressive), my Betta and the algae eater have been fighting, the algae eater tries to suck on his sides and my Betta turns on him for doing so. He has not eating in 2 days, he stays at the bottom of the tank so I put him in a smaller tank that I have so he does not have to go very far to get air, well I noticed a red bump on his… Read more »
Jeff
Jeff

Did you purchase that algae eater under the name of “Otocinclus catfish”? Otocinclus catfish aren’t aggressive. However, Chinese algae eaters can be mistaken as them. Chinese algae eaters grow huge and are very aggressive, sucking holes into the sides of fish and killing them. Please relocate your algae eater before it kills your betta.

David
David

My male beta (Master Beta) has become lethargic, stopped making his bubble nests, and not eating. When looking down on him, his scales appear to be flared out. Any suggestions?

Heather Chandler
Heather Chandler

That’s dropsy. Internal organ failure.

Amanda
Amanda

Sorry, he has dropsy. He will probably pass of kidney failure as there is no cure for it. Keep him isolated if you have other fish and try to make him comfortable for now.

jermy
jermy

We’ve had my Betta for two months and this week when I cleaned his tank I noticed that all his fins were clumped together. I cleaned his tank and when I put him back in after I was done cleaning his tank and I noticed that he was staying at the bottom and only coming up every once in a while. I tried to feed him and he would just eat and then spit it out and he started racing around the bottom of his bowl do you know what’s wrong if so please help!

Heather Chandler
Heather Chandler

Do you have a water testing kit?

Genna Carter
Genna Carter

I just got my betta about 2-4 months ago and when I first got him there weren’t any decorations except the filter and heater so i noticed some scales were “falling off” I guess but he is bright blue and on the top of his body were clear-ish or white scales. Now he has some plants and is making bubble nests and eats happily, but I noticed there are some white and some are an orange-ish red. I’m new to this so do you think this is hurting him? I would appreciate it.

Sandra Martinez
Sandra Martinez

You didn’t finish past orange-ish red-ish. A bubble nest means he is happy and wants to spread his seed.

Heather Chandler
Heather Chandler

False. A bubible nest is instinct. NOT indicative of a mood.

Sandra Martinez
Sandra Martinez

Did you read the whole thing? She didn’t finish first off. And bubble nests means breeding he is ready to breed. I have 4 rescued bettas, I had 7 but 2 of the males and 1 female where just to sick to make it. Mine have been with me a year at the least maybe longer. I stopped counting. Anytime mine make nests they want to breed. There is a difference from just bubbles from breathing and a bubble nest. Yes mine have already breed with mass success. Crown tail and veil tail.

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