Giant Betta Fish Care Guide 101: Look, Size, & More | 2024

By: Martin McAdam
Updated: March 29, 2023

Let us discuss all Giant Betta Fish. The Giant Betta, also called the Siamese Fighting Fish, is a popular choice for many fish keepers. They are one of the many species of betta fish. They are the largest extensively of Betta and result from selective breeding.

They are known for their beauty, grace, and aggression. They are Giant Betta Fish and live in freshwater. While they can be kept in small tanks, they do best in larger ones with plenty of room to swim.

This article will cover everything you need to know about Giant Betta Fish. This includes their diet, physical characteristics, water conditions needed, habitat, tank mates, and much more. We will try to give you all the information you require to take care of Giant Betta Fish.

So if you want to learn about them, then please continue reading!

Giant Betta Fish: Species Summary

Scientific Name:Betta anabantoids
Common names:Siamese fighting fish, Giant Betta
Origin:Southeast Asia
Color Form:Blue, green, orange, red, yellow, purple
Lifespan:3-4 years
Size:Up to 5 inches
Water Hardness:10-15 dGH
Care Level:Moderate
Minimum Tank Size:10 gallons (37.8 L)
Compatibility:Other small freshwater fish
Troubleshooting:Aggressive nature
Swimming level:All levels
Cost:Between 4$ and 18$

The largest species of bettas is the Giant Betta Fish. These fish have stunning features. They come in vibrant, striking colors with flowy fairy-like fins. They look soo heavenly that you can keep watching them all day. They are soo beautiful that they add grace to any freshwater tank.

The Giant Betta is a labyrinth fish with a special organ that allows it to breathe air. This is different from other fish that get their oxygen from the water. The labyrinth organ is located near the Betta’s gills, and it helps the fish breathe air directly from the surface. This adaptation is useful since it allows the Betta to live in low-oxygen waters.

Giant Betta Fish are widely available for trade all over the world. They can be found in pet stores in many different colors. But before your purchase your fish, you should know which fish is healthy and which is not to avoid any casualty.

A healthy fish has a smooth, shiny, and colorful body. The fins are long, flowy, and well-attached to the body. The eyes should be clear with no discharge or bulging out. The bettas should have a good appetite and should be active.

If you find any of these characteristics in your fish, it is healthy, and you can go ahead with the purchase. You should also ensure you get your fish from a reputed dealer or pet store.

Also, check Plakat Betta Best Care Guide, Facts & Species Summary

Giant Betta Fish: Appearance

The Giant Betta is one of the largest species of bettas. They are very colorful and have long fins. Their bodies are torpedo-shaped, and their heads are large with small mouths. Their fins are long and flowy.

Giant Betta Fish Appearance

Giant Bettas come in various colors, including blue, green, orange, red, yellow, and purple. They can also be a mix of two or more colors. The scales on their body are iridescent. The eyes and mouth of the Giant Betta are small compared to their head size.

The color of their eyes depends on their body color. The color of their fins can also range from light to dark.

Giant Betta Fish: Adult Size & Life Expectancy

Giant Bettas can grow up to 5 inches (12 cm) in length. They have a lifespan of 3-4 years, but this can vary depending on their care. They are not very big, but since they are bigger than other bettas, they are called Giant Bettas.

Giant Betta Fish: Behavior And Temperament

Giant Bettas are aggressive and should not be kept with other fish. They are known to attack and kill other fish. They are also known to be fin-nippers, so they should not be kept with fish that have long fins.

Giant Betta Fish Behavior And Temperament

They are territorial and may attack their reflection if they see it in a mirror or glass surface. It is best to keep them alone in a tank. Giant Bettas are solitary creatures and do not like to be around other fish. They are very territorial and will defend their space from other fish.

For this reason, you must consider giving them their separate tank. When your Giant Betta looks at ease and swims around peacefully, they are calm and happy. Still, they may feel stressed and tense if they swim frantically and make rapid movements.

Their behavior towards humans largely depends on how they were raised. If they were raised in a home with children, they would be more likely to be tolerant of humans. If they were raised in a home with adults, they might be more likely to be afraid of humans.

Giant Betta Fish: Origin & Distribution Around The World

Giant Bettas are native to Southeast Asia. They originate from the swamps of Southeast Asia. They can be found in Thailand, Vietnam, Malaysia, and Indonesia. They are trendy pets worldwide and are loved by aquarists and hobbyists. They are also famous pets in countries like China and Japan.

Giant Betta Fish: Habitat

They live in stagnant waters with little to no current in the wild. These waters can be murky and have a lot of vegetation. They like to stay in mildly warm water and will not tolerate cold water. The rivers in their original territory are usually still and swamp-like or very slow-moving. They do not need water with a strong current.

Giant Betta Fish: Difference

Male and female Giant Bettas can be distinguished by their size and fins. Males are usually larger than females and have longer fins. Females usually have shorter fins, and their bodies are less muscular than males.

The males are usually more brightly colored than the females. The males have long, flowing fins to attract mates and intimidate rivals. The females have shorter fins that do not flow as much as the males.

Giant Betta Fish: Breeding & Reproduction

Giant Bettas are easy to breed in captivity. They can be bred in a freshwater tank with a mild current and a temperature of 78° Fahrenheit.

You should have at least one male and one female in your tank for breeding. We suggest that you don’t add two males and one female, as they can fight with each other for mating.

Giant Betta Fish: Breeding requirements

  • The breeding tank should be at least 10 gallons and should have a mild current.
  • The water temperature should be between 75° to 78° Fahrenheit.
  • The pH of the water should be between 6.5 to 7.0.
  • You will need a male and a female Giant Betta.
  • You will also need a spawning mop or java moss for the female to lay her eggs on.

Giant Betta Fish: Process Of Reproduction

The reproduction process starts when the male and female are ready to mate. The male will chase the female around the tank and nip at her fins. This is called the Courtship Dance. The male will then build a bubble nest at the water’s surface.

The female will lay her eggs in the bubble nest, and the male will fertilize them. The female then keeps the fertilized eggs under her fins until they hatch. The eggs will hatch in 24 to 48 hours.

Giant Betta Fish: Raising The Fry

The fry will be free-swimming after about a week. They can be fed baby brine shrimp or crushed flake food. The fry should be kept in a separate tank from the adults to avoid eating.

You may also check Betta Fish 101: Diet, Lifespan, Size, Care Guide & All

Giant Betta Fish: Food & Diet

Giant Bettas are carnivores; their diet consists mostly of small insects and crustaceans. They will also eat plants and algae. As finding food in the wild can be difficult, they have to be able to eat various things. They are good at finding food and will look in places, including under rocks and mud.

Giant Betta Fish: Diet In Captivity

Their diet should consist of high-quality pellets or flakes and live, frozen, or freeze-dried foods in captivity. Some of the best food options for Giant Bettas include brine shrimp, bloodworms, daphnia, and krill.

You can also give them pellets or flakes, but make sure they are high-quality and contain protein. Occasionally, you can give them vegetables, such as zucchini, cucumber, or peas.

Giant Betta Fish: Feeding Frequency

How often you feed your Giant Betta depends on its age, size, and activity level. Adult Giant Bettas should be fed 2-3 times a day. Juvenile Giant Bettas should be fed 3-4 times a day. If they are very active, you can feed them more often. If they are less active, you can feed them less often.

Giant Betta Fish: Feeding Methods

There are a few different ways you can feed your Giant Betta. The correct feeding method is important because it can help prevent overfeeding, leading to health problems.

Giant Betta Fish Feeding Methods

One way to feed your Giant Betta is by using a small cup or container. Put the food in the cup or container and hold it close to the water surface. Your Giant Betta will see the food and eat it. Ensure you only put enough food in the cup or container for them to eat in one sitting.

Another way to feed your Giant Betta is by using a feeding tube. This is a long, thin tube that goes into the water. You can put the food in the tube, which will float to the surface. Your Giant Betta will see the food and eat it.

The third way to feed your Giant Betta is by using a turkey baster. This is a small, handheld pump that you can use to squirt food into the water. Your Giant Betta will see the food and eat it.

Also, check Tomini Tang Fish Care Guide: Appearance, Breeding & All

Giant Betta Fish: Care Guide

Giant Bettas got their name because they are the largest variety of betta fish. They are also known as Siamese fighting fish. This is because they are aggressive by nature and often fight with each other.

Giant Betta Fish Care Guide

They are called Betta because of their scientific name Betta anabantoids. The ‘fighting’ in the Siamese fighting fish is because they are native to Thailand, where fish fighting is a popular sport.

Giant Betta Fish: Water Requirements

The water requirements for Giant Bettas are not very different from those of other betta species. The pH of the water should be between 6.5 to 7.0, the hardness should be between 5 to 15 dGH, and the temperature should be between 76° to 78° Fahrenheit.

Giant Betta Fish: Tank Requirements

The minimum tank size for a Giant Betta is 10 gallons. If you plan on keeping more than one Giant Betta, you will need a larger tank. The tank should have a lot of hiding places and plenty of plants. Giant Bettas are not very active fish, so they do not need much space to swim around.

Giant Betta Fish: Lighting Requirements

Giant Bettas do not need special lighting. They can live in a tank with any lighting. Although they need some light to see, they do not need a lot of light. They require the same amount of light as other freshwater fish.

Read Also: Samurai Gourami Care: Appearance, Size, Diet | Updated| 2023

Giant Betta Fish: Filtration Requirements

Giant Bettas need a powerful filter to keep the water clean and circulate. The filter should not create too much current, which can stress out the fish. A simple sponge filter will be enough to keep the water clean. You may need a more powerful filter if you have a larger tank.

Giant Betta Fish: Heating Requirements

Giant Bettas need to be warm as they do not tolerate cold water. If the tank’s temperature drops, the fish can stress and get in shock. This is very bad for your fish. The temperature in your tank should be similar to the rivers and streams they originate from.

Read Also: Kissing Gourami Best Care Guide 101: Look, Size, & More 2023

Giant Betta Fish: Ammonium And Nitrate Levels

Ammonium and nitrate levels are important to monitor in any fish tank. Ammonium and nitrate levels can build up in the water and make your fish sick. These levels should be tested weekly to ensure they are within the acceptable range.

Read Also: 31 Best Low Light Aquarium Plants | Updated | 2023

Cleaning Mnd Maintenance

Regular cleaning and maintenance of the tank are crucial for the health and betterment of your fish. There are many aspects to cleaning and maintaining a tank. Here we will discuss everything in detail.

Read Also: Ludwigia Repens: Complete Care Guide: Color |Updated| 2023

Cleaning The Tank

The first step in cleaning the tank is to remove all of the decor, plants, and gravel from the tank. These can be cleaned separately. Next, you will need to clean the inside of the tank with a mild soap and water solution.

Be sure to rinse the tank well before adding anything back into it. No residue should be left in the tank, which can harm your fish.

Read Also: Eastern Box Turtle Species Profile 101: Habitat, Size | 2023

Cleaning The Filter

The filter should be cleaned every two weeks. To clean the filter, you will need to remove it from the tank and disassemble it. Clean the different parts of the filter with a mild soap and water solution. Be sure to rinse the filter well before putting it back together and into the tank.

Cleaning The Gravel

The gravel should be cleaned every two weeks. To clean the gravel, you will need to remove it from the tank and rinse it in a bucket of water. Be sure to rinse the gravel well before adding it back into the tank.

Also Read: Red Claw Crab Care: Habitat, Diet, Look, Size & All | 2023

Giant Betta Fish: Water Changes

Water changes are important to the health of your fish. You will need to change 20% of the water in the tank every week. To do a water change, you will need to remove the desired amount of water from the tank and replace it with clean, treated water. Only partial water change must be done to maintain water quality.

Giant Betta Fish: Transportation & Handling

Giant Bettas are not very active fish, and they do not like to be handled. They should only be handled when it is necessary. When transporting your fish, it is important to use a large container for the fish to move around in. The container should also have a lid to prevent the fish from jumping out.

The right way you can move them from one place to another is by using a net. First, you will need to acclimate the fish to the new environment. This can be done by slowly adding the new water to the fish’s container. Once the container is full, you can add the fish to the new tank.

Also, check How To Cure Fish Fungus (Aquarium Fish) Ultimate Treatment & Medication

Right Things to Add to Your Tank

Adding the right things to your tank is very important. You can not add the wrong things to your tank as this can risk the life of your fish. You must be cautious about what things you add to your tank and whether or not they are good for your fish. Here are things you need to add to your Giant Betta Fish tank.

Substrate And Gravel

The substrate and gravel you choose for your tank should be safe for your fish. Some substrates and gravel can harm your fish if they ingest them. Choosing a substrate and gravel that is the right size for your fish is important.

For Giant Bettas, the best kind of substrate is a sandy bottom. This will allow them to dig and create their own little space in the tank.


The filter you choose for your tank should be the right size for your fish. A too-powerful filter can create too much current for your fish. A filter that is not powerful enough will be unable to keep the water clean. It is important to choose a specifically designed filter for Giant Bettas.

Plants And Decorations

Adding plants to your tank can provide your fish with hiding places and places to rest. It is important to choose plants that are safe for your fish. Some plants can be harmful to your fish if they ingest them. Live plants are the best choice for a Giant Betta Fish tank.

Adding decorations to your tank can also provide your fish with hiding places and places to rest. It is important to choose decorations that are safe for your fish. Some decorations can be harmful to your fish if they ingest them. You should not add very tiny decorations or decorations made of glass, sharp objects, or harmful plastic.

Protein Skimmer And Gravel Vacuum

Adding a protein skimmer and gravel vacuum to your tank can help to keep the water clean and clear. Protein skimmers remove organic waste from the water. Gravel vacuums remove debris from the gravel. This can make your cleaning process a little less hectic and less time-consuming.

Test Kits

You will need to test the water in your tank weekly. This can be done with a simple test kit purchased at your local pet store. The test kit will test for ammonia, nitrites, and nitrates. These levels should be within the acceptable range for freshwater fish.

There are different test kits available for different kinds of fish.

Water Conditioner

A water conditioner is a product you add to the water to make it safe for your fish. The water conditioner will remove chlorine and chloramines from the water. It will also help to remove heavy metals from the water. A water conditioner should be used when adding new water to the tank.

Giant Betta Fish: Tank Mates

Giant Bettas are very aggressive especially male Giant Bettas, so it is necessary to choose their companions wisely.

Adding two giant male bettas to one tank is not a good idea, but you can add some other freshwater fish to their tank. Their companions must not be bigger than them and aggressive.

You can keep them with the following:

Giant Betta Fish: Different Color Of Morphs

The Giant Betta has several color morphs, including blue, green, orange, red, yellow, and purple. Each color morph has its unique patterning and coloring. The most common color morph is the giant blue Betta. It is also widely available in colors like orange, yellow, and red.

Some rare colors that they can be found are green and purple. The rarer the color, the more expensive your fish will be. Blue Giant Bettas are typically the most expensive, while yellow and orange Giant Bettas are usually the least expensive.

Read Also: Mermaid Weed (Proserpinaca Palustris) Care: Look, Types 2023

Giant Betta Fish: Symptoms Of Poor Water Quality

There are many symptoms of poor water quality.

Some of these symptoms include:

  • Fish gasping for air at the surface of the water
  • Fish appearing lethargic
  • Fish hiding more than usual
  • Fish refusing to eat
  • Water appearing cloudy or discolored

If you notice any of these symptoms, it is important to test the water quality and make changes as needed. Regular water changes and tank maintenance will help to prevent these symptoms from occurring.

Giant Betta Fish: Diseases

Several diseases can affect Giant Bettas.

Some of these diseases include:

  • Ich: Ich is a common disease that can affect freshwater fish. It is caused by a parasite that attaches to the fish’s skin and creates white spots. Ich can be treated with anti-parasitic medications.
  • Gill Flukes: Gill flukes are parasites that attach to fish’s gills. They can cause breathing difficulties and inflammation. Gill flukes can be treated with a variety of anti-parasitic medications.
  • Velvet Disease: Velvet disease is a parasitic infection that causes the fish’s skin to turn a velvety brown. It can also be treated with anti-parasitic medications.
  • Bacterial Infections: Bacterial infections are common in Giant Bettas. They can cause various symptoms, including lethargy, loss of appetite, and inflammation. Bacterial infections can be treated with a variety of antibiotics.

If you think your fish may be sick, it is important to take them to a vet for a check-up. A vet can determine the cause of the illness and prescribe the appropriate treatment. It would help if you did not try to treat your fish yourself without a professional diagnosis. If the wrong medications are given, it could make the fish sicker or even kill them.

Giant Betta Fish: Preventing Diseases

Prevention is always better than cure. You can do several things to prevent disease in your Giant Betta. Some of these things include:

  • Quarantine new fish: It is important to quarantine them first when you add new fish to your tank. This means keeping them in a separate tank for at least two weeks. This will allow you to watch for any signs of illness and treat them before adding them to your main tank.
  • Change the water regularly: Water changes are important for all aquariums. It would help if you changed at least a quarter of the water in your tank every week. This will help remove any toxins or build-up of waste that could make your fish sick.
  • Clean your tank regularly: It is important to clean your tank regularly. This means removing any algae, debris, or uneaten food. A clean tank is a healthy tank.
  • Check for pests: Pests like snails, shrimp, and crabs can carry diseases that can infect your fish. It is important to check new additions for pests before adding them to your tank.

These are just a few things you can do to prevent disease in your Giant Betta. By following these tips, you can help to keep your fish healthy and happy.

Giant Betta Fish: Frequent Mistakes To Avoid

When setting up a tank for your Giant Betta, there are a few mistakes that you should avoid. These mistakes can be harmful to your fish.

  • Adding too Many Fish to the Tank: Adding too many fish to the tank can overcrowd the tank and make it difficult for your fish to thrive. It is important only to add a few fish to the tank. This will give your fish enough space to swim and hide.
  • Adding the Wrong Fish to the Tank: Adding the wrong fish to the tank can harm your fish. Some fish can be aggressive and may harm or even kill your fish. It is important to choose fish that are compatible with Giant Bettas.
  • Adding Plants and Decorations that Harm Your Fish: Adding plants and harmful decorations to your fish can be hazardous. Some plants and ornaments can release toxins into the water, harming or killing your fish. It is important to choose plants and safe decorations for your fish.
  • Not Cleaning the Tank Regularly: Not cleaning the tank regularly can allow harmful toxins to build up in the water. This can be very dangerous for your fish. It is important to clean the tank at least once a week. This will help to keep the water clean and clear.

Giant Betta Fish: Advantages

The Giant Betta Fish has many advantages.

Some of them are:

  • Giant Bettas are beautiful fish that can add color and interest to your tank.
  • They are also relatively easy to care for.
  • They are bold and fearless.
  • They are relatively less messy fish.
  • Giant Bettas are good for beginner aquarists who can handle aggressive fish.

Giant Betta Fish: Disadvantages

Although these fish are very versatile and good for your tank, they have some disadvantages.

Some of these disadvantages are:

  • Giant Bettas can be aggressive and may harm or kill other fish in the tank.
  • They also require a larger tank than most other fish.
  • They have compatibility issues.
  • They can become easily stressed and tense.

Wrapping It Up

Now that you have read this complete guide on Giant Betta Fish, you should have all the information you need to take care of them. They are a beautiful and majestic species of fish that make a great addition to any freshwater aquarium.

Just remember to provide them with plenty of space, a varied diet, and plenty of hiding places. Your Giant Betta will thrive and live a long, happy life with proper care. We hope you enjoyed this guide on Giant Betta Fish. We tried our best to deliver you the most comprehensive information possible.

We expect that you learned something from our article and will be able to take better care of your Giant Betta Fish, and if you don’t yet have this fish in your tank, you will plan on getting these divas in your tank. Thank you so much for reading!

Disclaimer does not intend to provide veterinary advice. We go to great lengths to help users better understand their aquatic friends. However, the content on this blog is not a substitute for veterinary guidance. For more information, please read our disclaimer.

Amazon Associates Program is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to

Copyright © 2023 AMP