Betta Diseases, Prevention, And Treatment
Quick guide to Possible Betta diseases. Plus Prevention and treatment.
Fungal Infection
If you always add aquarium salt to your betta’s water (1 teaspoon of aquarium salt per 2 1/2 Gal of water) and one drop of Aquarisol per gal, your betta will probably never get fungus. It is contagious, but bettas will more than likely recover if treated promptly.
Symptoms: Betta has white cottony like patches on its body or head. He may be less active, may have stopped eating, fins may be clumped, color may be pale.
Treatment: Do a full water change. Use Meds such as Jungle fungus eliminator or equivalent.
Tail Rot or Fin Rot
This disease comes mainly from dirty water. If you keep his water VERY clean Mr. Betta will never get tail/fin rot. It is not overly contagious, and bettas will more than likely recover if treated promptly. Fins/tail will grow back, though may not have same color or may not look as good or be as long.
Symptoms: Betta’s fins and/or tail seem to be getting shorter and shorter. Or they seem to be falling apart and dissolving. There may be a darker color (or a reddish one) to the edge of the betta’s fins/tail. He may be still active and eating normally, or may have stopped eating, fins may be clumped, color may be pale.
Treatment: Do a full water change and use a medication such as Neosulfex, Bettamax or Melafixor. an antibiotic such as Tetracycline. Once rot stops and fins start growing back you can switch to Betta-Max and use it for a month. Betta-Max will not hurt your fish and also has vitamins, etc. that help the healing process. A small pinch of aquarium salt or rock salt will also help the healing process.
Advanced Fin Rot and Body Rot
This disease starts as a regular fin rot, but the rot progresses quite rapidly and is harder to stop. Soon no fins are left as all tissues have been eaten away. Then the rot proceeds to attack the body. Not a pretty picture.
Symptoms: Fins and or tail start rotting away, usually starting from the edge, but sometimes it starts at the base of the fin (especially dorsal) and attacks the body directly. Diseases progresses rapidly and as the tissues are being eaten away, you might see the fins bones stick out. Once fins have been consumed, rot will proceed onto the body. At this stage the disease is hard to reverse although the betta might continue to live for months if treated properly. If not treated, it will die promptly (and probably suffers quite a bit.)
Treatment: Do a full water change. Preferably provide a new tank (although that’s expensive disinfectant should clear all problems just make sure you rinse it fully disinfectant WILL kill your fish). You must combine several medications to have a chance to stop this thing. Use Ampicillin and double the dose if needed, and use at the same time tetracycline. These medications usually come in capsules. A full capsule usually treats 10 gal of water. So for a 1/2 gallon of water, open the capsule and take the right proportion of powder and sprinkle on jar water. You may steer gently with a disposable plastic spoon. Tetracycline might turn the colour of the water to a dark yellow or red. Overmedicating a little might help! Change water every third day and add a new dose of same medication. Continue until fins/tail stop receding and start showing some new growth. It may take up to 4 weeks to work, so don’t give up. Once healing starts you should treat for one more week to be sure.
Ick
Ick is a pesky little parasite. If you always add aquarium salt to your betta’s water (1 teaspoon of aquarium salt per 2 1/2 Gal of water) and one drop of Aquarisol per gal, your betta will never get ick. It is very contagious, but bettas will fully recover if treated promptly. Frozen live food may carry ich.
Symptoms: Betta has white dots (looks like he was sprinkled with salt) all over his body and head, even eyes. He may be less active, may have stopped eating, fins may be clumped. he may also be darting and scratching against rocks, plants and whatever else he can find.
Treatment: Do a full water change and add more salt (up to 1 teaspoon per gallon) to the water. Raise the water temperature to 85 degrees F.
Velvet
Velvet is another pesky little parasite. If you always add aquarium salt to your betta’s water (1 teaspoon of aquarium salt per 2 1/2 Gal of water) and one drop of Aquarisol per gal, your betta will probably never get velvet. It is very contagious, but bettas will fully recover if treated promptly. Velvet is the number one killer of small betta fries.
Symptoms: Velvet is hard to spot, but can be best spotted with a flashlight. Shine the light on the betta’s body: if it looks like it is covered with a fine gold or rust mist, then it has velvet. A betta with velvet will act sick, so look for clamped fins, scratching against rocks/gravel/tank, loss of appetite, loss of color etc…
Treatment: Velvet is a parasite. Because velvet is very VERY contagious, it is preferable to treat the whole tank when one fish is found to have it. Increase the amount of salt as the procedure for ick (see above). Use a medication for velvet such as Maracide.
Popeye
If you always keep your betta’s water very clean, he is not very likely to get Popeye. Popeye is a bacterial infection usually caused by poor water condition (in other words filthy water because you were too darn lazy to get off the couch and attend to your betta!!!). but popeye can also be the tip of the iceberg, the external sign that something inside Mr. Betta is going very wrong. For example, tuberculosis will sometimes result in popeye. In that case, the popeye may not be curable or even if it gets better the fish will die (because tuberculosis is not curable and always kills its host). In short the fish will have died, not of the popeye itself, but because of the more serious disease that triggered it.
Symptoms: One or both of Mr. Betta’s eyes start bulging out. In about 2 to 7 days the eye might look so grotesque you will be afraid to look at your betta. Sad Casimodo on a bad day will look more attractive then your betta at that point!! Please do not destroy your betta! In many cases, the bettas make a full recovery from it and look normal again, as if nothing had happened. Only some of the popeye cases are caused by the terminal diseases mentioned above and will result in your betta dying. The rest will heal nicely if caught early and treated aggressively (see below). During outbreak, betta may be less active, may stop eating.
Treatment: Tetracycline, Maracyn, Maracyn-Two, TriSulfa or Ampicillin – can be found online and in good LFS!!
Dropsy
This is a most common and most fatal betta disease. oftentimes linked to the feeding of live foods, especially black worms. Very little is know about it, but what causes the raised scales is fluid building up under the skin, inside the betta’s tissue. Usually what causes fluid to build up is simple kidney failure. And as you know, once the kidneys fail, the body dies. I think that is why we have had so little luck (NO LUCK AT ALL) in treating successfully bettas with dropsy. Although dropsy (the symptom) itself is not contagious, BACTERIA THAT CAUSE THE KIDNEY FAILURE in the first place usually are very very contagious.
Symptoms: It is easy to diagnose a betta with Dropsy: Look for two signs: an abnormally big (bloated) belly and if you look at betta from the top, raised scales. Scales will look like an open pine cone. If you see this, you are out of luck, and so is Betta. He will soon go to betta heaven Sad…
Treatment: No known cure. Keep water clean, keep him AWAY from any other bettas etc… On occasion, in the case of a very mild raised scales, I have seen bettas recover on their own. But I suspect that this is because those cases are NOT real dropsy. Real dropsy always kill. So I guess you have to wait and see what happens. Treating is pretty useless. It may take up to 15 days for betta to die, though usually about 5 days. Any betta with dropsy should be immediately ISOLATED!!!! Prayer may not hurt.
Swim Bladder
This is also a common betta problem. It is not contagious. It comes from overfeeding. It is especially common in very young bettas (30 to 60 days old) and can affect some Double Tail bettas when overfed or stressed..
Symptoms: Bettas with a swim bladder disorder will have difficulty swimming, because their swim bladder (located alongside the spine between the belly and the tail) is either too short (causing them to not be able to swim horizontally) or it is swollen (causing them to float on one side). Double Tail bettas, because they have a shorter body, are especially prone to the “floaters” problem. In the case of a short swim bladder, the bettas will not be able to maneuver and swimming becomes so difficult, they prefer to just lie at the bottom, sliding on their bellies, which is why they are called “belly sliders”. And they do look like a pathetic bunch, at that point.
Treatment: Bettas may recover on their own, but since overfeeding induces swimbladder disorders in most cases, the first thing to do is feed a lot less. Brine shrimp and too much of it is the biggest culprit, so if your bettas are bellysliding, stop the brine shrimp for a while and thereafter learn to have a more balanced diet, alternating brine shrimp with microworms or worms (depending on how old your bettas are). DO NOT KILL a betta with a swimbladder disorder. It may recover on its own at any time, and is not suffering. Further more, the ailment is NOT contagious. To help the fish if it cannot eat, lower the water level.
Inflamed Gills
The gill or gills of a betta may become inflamed, because of nitrate poisoning, and possibly bacterial infections, or even a defective gill (if it was born that way).
Symptoms: One or both gills will not close all the way (look at betta from the top it is easier to see it then), gills may look red on the inside (inflamed) or not, in the last stages, the betta may be gasping for air, unable to breath and ultimately die.
Treatment: Isolate sick betta. Do a full jar water change every third day. Every time you change water, add antibiotic (Pick one that treats inflamed gills, like Ampicillin for example) to the water. In the case of nitrate poisoning, simply add one drop of methylene blue in betta’s jar.
External Parasites
If you do not add some aquarium salt (1 teaspoon per 5 gal) to your betta’s water to prevent parasites, your betta may get some parasites, but I cannot say it is common as I, personally have never seen the little pests in my fishroom (hehehehehe…). A reader sent me a photo showing his pet store betta with anchor worms near the gills and fins. It might give you a reference point. but note that each parasite has its own shape. The use of a magnifying glass will be helpful to help SEE them on your fish’s skin.
Symptoms: It is easy to diagnose a betta with external parasites: It will dart and scratch itself against anything it can find, such as gravel, rocks, heaters, tank walls, etc… You may or may not actually be able to see the parasites themselves. Look instead for a behavioral change in your betta. If it looks like it is on speed or acid, then it has parasites!!
Treatment: Do a full water change for jars or a 70% water change for tanks. (To get rid of some of the parasites and their eggs, etc.).
Internal Parasites
If you feed live brown worms, you can easily give your bettas some internal parasites. Those are a real pest because you can’t see them, the bettas behavior does not change, except they start looking skinny despite the fact they are eating normally. This is a somewhat rare disease, meaning you may or may not have to ever deal with it.
Symptoms: Bettas are losing weight despite their eating normally. WARNING: there are other serious diseases that mimic internal parasites because the fish start looking emaciated (fish tuberculosis). So it is easy to confuse the two.
Treatment: Do a full water change for jars or a 70% water change for tanks. (To get rid of some of the parasites and their eggs, etc.)
Bacterial Infection
If the betta‘s water becomes fouled with uneaten food and fish waste, if it is not well filtered or if the jars are not kept sparkling clean, bacterial bloom will promptly occur and infect your fish. Sometimes you keep the water clean and the fish still gets a bacterial infection!! Why? because bacteria is resident in your tap water, in the air, on your hands etc… Usually healthy bettas have their immune system to protect them against these attacks. But bettas with a deficient immune system (when a betta is stressed, because it was scared, or moved or shipped, its immune system will become deficient) will catch whatever is lurking in the water, including the bacteria. They will have a “bacterial infection”. VERY CONTAGIOUS!!
Symptoms: Betta may have clamped fins, lay at bottom or at surface, not eat, lose its color, turn gray, barely swim around. In more advanced cases, its body may start developing red patches, open sores and all kinds of nasty looking stuff. (Even holes in its head!! YIKES!!) Different bacteria affect fish differently. Some will attack the internal organs while others prefer to munch on the skin.
Treatment: Do a full water change for jars or a 70% water change for tanks. (To get rid of some of the bacteria present). Clean filter, change filtering system, remove any uneaten food rotting, or any dead fish!!! Isolate any bettas with symptoms if in a community tank.
You should also treat the whole tank. There is a wide variety of antibiotics available for fish. REMEMBER: Remove carbon from your filters before you add the meds!! The carbon would otherwise absorb all the medication and you would be flushing your money down the tube. Oh, and did I mention money?? Yes, brace yourself, cause your little fishies are gonna cost you a bundle, fish antibiotics can get pretty darn expensive - just as people’s antibiotics are, as you well know!! ANTIBIOTICS TO USE:- Tetracyclin, Kanamycin (good for serious infections) you can get them from good fish stores or online stores!!
Tuberculosis (TB)
This is probably the deadliest of fish diseases, yet most people have never heard of it or know little to nothing about it. It can mimic a large variety of other diseases, making it hard to diagnosis. Only an autopsy can confirm mycobacteriosis. This is a slow blooming disease that may take up to 6 months to affect fish. Ultimately, the bacteria will attack the internal organs, especially liver and kidneys and cause organ failure (followed by sudden death). This is the only fish disease known to be contagious to man. The good news is, unless you have a very infected tank and stick your hands in there and have a big cut or a weak immune system, you will probably never catch it from sick fish. And even if you did, it will not kill you, mostly give you a nasty skin infection which may take a long time to heal. The bug does not like people much (it is a temperature thing), and seems to remain on the skin surface only. Also, just so you don’t become all paranoid now, I must add that there has been VERY FEW documented cases of fish TB infecting people. And in most cases, as I said, the people either had a deep cut or immune system deficiency. The only reason I am mentioning all this is so you are aware of it. Don’t worry, Mr. Betta is not out to get ya! LOL. Fish tuberculosis can be resident in water but has also been linked to live foods (researchers found cases of live foods infected by tuberculosis etc…), and is mainly passed by injection (eating contaminated live food, or eating a dead fish that was a carrier, etc…) Now you can understand the importance of staying away from fish stores where you can see a lot of dead fish! Pick your fish suppliers very carefully and favor a store or breeder that has high hygiene standards in their fish rooms or stores
Symptoms: Affected fish will start deteriorating for no apparent reasons, losing weight (or not), showing deformities (or not), having raised scales (or not), fin and body rot (or not), gray lesions (or not), red patches inside the belly (or not). Sometimes they will seem fine one day and be oh so very DEAD the next. The one thing all the bettas affected by this terrible diseases have in common is that they will all (as in every single last one of them) die. So if you suddenly find a large number of dead fish in your tanks, and more die each day, there is a strong possibility you might be at war with fish tuberculosis (careful though, other bacterial infections can also have similar dramatic death rates).
Treatment: I am sorry to break the news to you but you will NOT win that war because there is NO cure. Furthermore you will probably have to throw away all bowl, tank and fish gear because regular bleach does not kill this nasty bug. My advice? Stay away from live food and from sickly looking pet store bettas and as I said select your fish suppliers carefully. Oh, and do a lot of praying.
This article was written by Jaded of Betta Kisses.
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