Betta Fish

Betta fish are well known for their beautiful long flowing fins and aggressive fighting instinct. When cared for properly they can live up to 4 years in captivity.

Forget about the small cup you see in pet stores.  These fish will do well with a small tank.

Betta Fish History

Betta fish, scientifically known as Betta splendens, are small freshwater fish belonging to the gourami family. They are renowned for their vibrant colors, flowing fins, and elaborate displays of aggression. Male bettas, in particular, possess striking long fins and come in a wide range of shades, including vibrant reds, blues, purples, and even metallic shades.

Betta fish have their roots in the warm waters of Thailand, Cambodia, Vietnam, and other parts of Southeast Asia. In their natural habitat, these fish inhabit shallow waters, including rice paddies, slow-moving streams, and stagnant pools. Due to their ability to survive in oxygen-depleted environments, bettas have evolved a specialized labyrinth organ that allows them to breathe air directly from the surface. This unique adaptation enables them to survive in waters with low oxygen levels. 

Historically, betta fish were initially bred for their fighting prowess. In ancient Siam (now Thailand), they were selectively bred for their aggression and used in gambling fights. The popularity of bettas as fighting fish eventually spread across Asia and eventually reached the Western world.

Today, betta fish are primarily bred for their captivating appearance and are a popular choice for aquarium enthusiasts. Selective breeding has led to an incredible variety of colors, patterns, and fin types, making them one of the most visually stunning freshwater fish available.


Feeding your betta fish appropriately is critical to its wellbeing and survival. Bettas require high-quality pellet foods containing animal protein that are available from pet stores.  Alternatively, as a treat you could try feeding it flakes or brine shrimp as snacks. It is advised to only feed two or three pellets daily as too much food may lead to constipation in these fish.  In the wild, they eat insects and bugs landing on the surface of their ponds.

Fresh seafood provides another good source of animal-derived nutrients, including shrimp, oyster, or scallop chunks. However, you should avoid eating only seafood as this could contain bacteria that could harm their health and yours.

Frozen bloodworms (the bright red larva of midge flies) are an excellent treat that are available at most pet stores. These packages typically consist of small cubes that you can thaw out and feed directly to your betta fish, but only provide it in small doses at one time as too much can lead to bloating and constipation in some instances.

Live food can help recreate their natural environment and exercise their hunting instinct. In addition, this type of food provides additional vitamins and minerals. Some owners even start brine shrimp cultures as food sources for their bettas! Regardless of which source is chosen to feed your betta fish, make sure you provide it with all its necessary nutrition by rotating between sources to ensure all its needs are met.


Bettas require high quality water in order to thrive, providing a safe and healthy habitat for themselves. Bettas naturally inhabit slightly stagnant bodies of water with pH values between 6.5-8.0.  For optimal conditions, it is also important to keep water temperatures between 76-82 degrees Fahrenheit.  These are tropical fish, not goldfish!

Tap water is typically the least costly choice and safe for betta fish as long as it has been treated to deal with chlorine, and has an even temperature. When using tap water, be sure to have a test strip ready so you can easily monitor its parameters.

Alternative water sources that could benefit betta fish include bottled spring water. Although more expensive than tap water, bottled spring water offers natural pH levels closer to those required by bettas while avoiding traces of chlorine. 

Some pet stores sell pre-conditioned water that has been tested to meet betta’s pH needs.  It may cost more than regular tap water, but could help your fish remain healthier and happier for longer. It may even make sense from an environmental and comfort standpoint!

If using bottled water, it is recommended that the tank be changed out roughly half of the time to prevent diseases in your betta from developing. If this is impossible for any reason, monitor for signs of distress such as irregular swimming or rapid gill pumping to determine when change should take place and take immediate steps if this is noted.  Water change intervals will depend on fish load, and tank size, among other variables.


Betta fishes require more than just a tank to thrive, they need their entire environment in which to thrive, including hiding places from predators and prey, as well as enough room to swim freely. Furthermore, their ideal environment should feature stable water temperatures, low-light plants for protection from UV radiation exposure, and an efficient filtration system with low flow rates to remove any build-up caused by urine, feces or digested food that build-ups over time.

Betta habitats consist of rice paddies, swamps, water streams, and slow-moving rivers where there are hiding spaces available to them. When threatened, these aggressive fish become territorial and defensive over their territory by fighting back with bites to defend it.

Colder temperatures can leave them lethargic or more susceptible to disease.  Live plants may aid with adding oxygen.  Also, if using a lid on the tank, always leave a space for an air gap.

Tanks for Betta fish should be large enough for them to swim around in comfortably. Decor such as rocks, caves and driftwood may be added.  Just avoid decorations with rough textures or jagged edges that could tear their delicate fins. A filter system is also essential as these aquatic creatures are sensitive to environmental pollution.

Although Betta fish can survive in small fish bowls, for optimal conditions it is recommended that they live in a 2.5 gallon or larger aquarium with heater and thermometer, gravel substrate, filter system, aerator, tank lid with ventilation holes.  Also consider a dark color scheme containing dark-tone plants such as Java Moss, Anubias Marimo Moss Balls or Cryptocoryne to reduce stress levels in their environment.


Lighting is an integral component of a betta fish environment, as it plays an integral role in their behavior and metabolism, as well as enhancing colors and the aesthetic appeal of the tank. But be wary when selecting lighting levels.  Extreme light conditions can have devastating results on these fish, so make sure that you use energy-efficient lighting without altering temperature of water.  This way there are no adverse side effects.  Avoid incandescent lights as these heat up water temperatures, stressing out betta fish further.

Betta fish inhabit rice paddies, canals, streams and other murky waters in their natural environment; as a result, sunlight typically reaches only dimly. Therefore, artificial light that mirrors this environment should be provided if you wish to preserve its vibrant colors for longer.

Replicating the day/night cycle that betta fish enjoy in their natural environment is also key to their wellbeing and overall health. Offering them eight to 12 hours of illumination during the day before switching it off at night will help ensure they get enough restful sleep to remain healthy.

Bettas have the unique ability to see in the dark using their lateral line as a sixth sense. Because of this, they don’t require lighting in their tanks at night since, they can navigate just fine with dimmer lighting in their natural habitat. Still, it would be beneficial for your betta to have hiding places such as caves, overhangs, bushy plants or floating logs for them to retreat from the light if necessary.


Bettas should consume two to three pellets daily, along with occasional freeze-dried bloodworms and brine shrimp. Overfeeding can degrade water quality and cause waste build-up on the bottom.  To protect your fish’s wellbeing, a filtration system can help remove this build-up before it becomes toxic.

Filters are not required in betta tanks.  However, they are strongly suggested in order to increase oxygen levels, remove ammonia and combat harmful bacteria, while encouraging healthy bacteria growth in your tank.

Bettas can become susceptible to waterborne diseases caused by polluted waters, including ich and velvet protozoan infections. Common signs include dusty spots that look similar to salt; rapid flashing (betta behavior that involves rapidly rubbing against objects); and loss of appetite. If your betta is showing any of these signs, add aquarium salt immediately into their environment, change 80% of their water twice daily, or use a fungicide according to manufacturer directions.

An active and vibrant betta will typically display full, well-developed fins that show no evidence of tear tearing or unnatural discoloration.  Unhealthy ones will likely appear lethargic and dull in color with torn fins, gills and bellies showing signs of disease. Bettas exhibiting these symptoms will scratch at themselves on habitat decorations or scratch their bellies before gasping at the surface and rising to the top in an effort to breathe more easily.

Betta Fish Niche

There are over 200,000 searches for this keyword every month, so this breed is quite popular.  There are all kinds of food and accessories for this breed, so you could be an affiliate for multiple products.

A betta fish care guide is still available on ClickBank.

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