March 8

Sarah Robertson

Giant Betta Fish Care Guide

Giant Betta is a very unique and special kind of betta that can grow up to 4 inches or more. The giant betta needs a minimum tank size of about 30 gallons (45-60L).  Betta fishes that are found in pet shops are usually normal size bettas. Giant betta is the result of the constant breeding of normal betta. They select the larger bettas and continue breeding them to get an even bigger betta.

Betta fish are known for their fighting characteristics that they show off to other bettas or any fish that invades their territory. However, the Giant betta is much calmer than its counterpart, often called the "Siamese fighting fish", and is, therefore, more appropriate as a pet.

Facts about Giant Betta Fish:


These amazing fish come in many different colors. The most popular color is blue, but red, green, yellow, and black are also popular options. There have been documented cases of deformed bettas with two or three tails!

If you see a colored beta that you've never seen before it could be because of a genetic mutation. In most cases, these mutations happen when people try to breed different types of beta together. If the mutation happens during development then there is nothing that can be done about it.

The largest betta ever recorded was an astounding 20 inches long.

Normally Males can grow up to 7 inches in length and females are slightly smaller.

You can tell the sex of your Giant Betta by looking at their belly. If they have a more curved belly it's likely that you have a female, if they are flatter then most probably they are male.

Male bettas are capable of changing their colors to impress or intimidate other fish. Females on the other hand cannot change color, but they sometimes have brighter colors due to their eggs!

They also have very different tails. Male's fins end in a pointy shape which is perfect for sparring with other beta males. On the contrary females, fins are rounder and thicker, this allows them to give birth without damaging the young during development inside her body.

Giant betta fish Lifespan


If you take proper care of your betta fish health it's possible for them to live up to 5 years. Else it will have a shorter lifespan.
It is vital that we maintain Giant Bettas in water with low levels of ammonia and nitrite because these two chemicals can cause devastating illnesses like Fin Rot. If your fish get sick, at least you know where the problem started. These chemicals should be completely absent if your bettas are going to remain healthy.

Once the betta reaches about 1 inch long it should be moved to a larger tank. A 2-gallon tank is usually adequate for this size of fish. As they get bigger their tanks will need to be upgraded to larger ones until they are around 4 inches long and can move into a 10-gallon tank or larger. If you have more than just one Giant Betta then you should upgrade by moving all other fish into another tank before putting your new beta in its home. If you do not, your other fish may become seriously injured or even killed by the beta!


Giant Betta fish are highly territorial and aggressive in confined spaces, however, this can differ in larger tanks. You should never put a single fish in the same tank as a Siamese fighting fish because they will aggress on one another constantly.

When they detect their guardian approaching, they usually swim about enthusiastically. They are very inquisitive and will inspect new items put in their tank, which may keep them mentally engaged. If you put another beta of any size into an aggressive betta's home then this could lead to injury or even death. The beta might also become too stressed and may stop eating or begin acting abnormally. It's always safer to get rid of them when buying new ones for this reason!

Habitat and Tank Conditions :

A ten-gallon or larger tank size is what is recommended. Bettas like lots and lots of swimming areas. More swimming area is always better than having too little. Poor water quality will have a negative impact on the health of betta fish.

These aggressive fish require a significantly larger aquarium than your typical beta. One huge beta requires a 10-gallon tank as the minimum. If you have more than one, a 20-gallon or greater tank will be necessary.

Giant Betta fish should not be kept with any other beta because of their aggressive nature and the risk of injury to smaller fish. On top of this, it's always better to keep them alone in case they develop health problems! This means one giant beta per tank, no exceptions! Giant bettas are very best kept in fish tanks that mimic their natural habitat as closely as possible.


These fish should be separated when spawning so that they do not eat their own eggs/fry. The female bettas should be moved into her own home and the male can stay where he is. This way she will have somewhere safe to lay her eggs where he cannot get at them! After she has laid all of her eggs you can put her back with the males. If she is left by herself too long without food she will eat the eggs so keep an eye on her to make sure this doesn't happen!

After about 3 days you can move the fry into a separate home if they are still not swimming around by themselves. The fry may be very small and therefore somewhat weak swimmers for this reason. You should also avoid using an air stone because it could suck up some of them! A filter would be fine but again, don't use one that creates strong currents because you will end up losing some fish.

Another important factor in terms of breeding giant bettas is water temperature. When the baby bettas come out of their eggs they are very cold and this can make it a lot tougher for them to survive. It is therefore important to raise the temperature of your tank slowly but surely until it reaches 80-82°F. Once the temperature reaches these levels the fry should be more active and begin swimming around on their own.

Giant betta Water Condition

Water Condition:

The Giant betta can live in water with moderate water parameters. The tank's water temperature should always be 75°-76° Fahrenheit, regardless of the season or time of day. A water heater may help to keep the ideal temperature. In very cold water, the big betta will become ill and perhaps die as a consequence.

While giant bettas may be able to tolerate certain levels of ammonia and nitrite in their tanks for short periods, these levels should never reach toxic and dangerous levels for any length of time (i.e., more than 1-2 days). The ideal level of ammonia in their tank should not exceed .25 ppm, while nitrate levels should remain below 0.5 ppm. To prevent fluctuations between these chemicals you can add an ammonia binding agent to your tank.

Giant bettas require a lot of open space in the water to swim about, and they don't like tight or awkward spaces such as corners. Make sure that your tank is filled up right up to the top even if it means compromising on height. Giant bettas can jump!


Giant Bettas are carnivores and need to be fed live foods at least once per day. It's also important that they get their fair share since giant bettas can become aggressive towards other fish if they feel threatened or hungry! They can eat just about anything - from flake food to bloodworms and brine shrimp!

Anything that sinks in the water is fair game. It is always better to feed your beta pellets soaked in vitamin B1 to ensure that it is getting their complete nutritional needs met. Bloodworms, brine shrimp, and daphnia fish should also be given as treats from time to time.

Feed your beta 2-3 times a day if it eats dry food, 5-6 times a day if it only eats frozen foods. If your betta doesn't seem hungry or continues to spit out its food try changing up what kind of food you're giving it, whether it be live, frozen, etc. Some bettas may prefer one over the other!

If they are given an excessive amount of food each time then their water quality can easily get dirty which can lead to illness and even death. Giving your beta small amounts of food about once a day should be sufficient. I would also suggest not feeding it the same kind of food every day because variety is important as well.

How to Take Care of Giant Betta Fish:

Step 1: Getting Your Fish Tank/Bowl Set up

It's very important that you do not put any other fish in the giant beta's tank because it can become territorial. The giant betta cannot tolerate hard water and does not like bright lights. They should also be kept in dimly lit tanks with a dark substrate and live plants to make them feel most comfortable. Plus, this will make them less likely to attack any other fish in the tank.

Step 2: Getting Your Giant Beta Used to Its New Home

Giant bettas are very sensitive and they need a big change to their water at one time! So it is important that you get them used to a new place slowly by changing about 25% of the water every week over a month's time. The water should be very clean before the beta is introduced into it.

Step 3: Feeding Your Giant Betta Fish

Giant bettas need to eat regularly - at least four times a day; it's best if you feed them several small meals rather than one big one. But make sure that the food is sinking and not floating because bettas like to eat food off the bottom. It's probably best if you turn the light out when you feed your beta because it can be startled by sudden bright lights. Try giving it a variety of foods instead of the same thing every day to keep your fish healthy and happy!

Step 4: Watching Out For Problems!

Make sure that you check on your giant beta every day to make sure it's healthy and that there aren't any problems. If your beta seems to be really dirty or losing weight then these are signs of poor water quality. It is important to keep the tank well maintained to ensure the health of your fish! You should also keep an eye on the tank for anything out of the ordinary or any changes in your betta's behavior.

How To Maintain The Tank:

  • Replace partial water every week. At least 25% of the water should be changed each week.
  • Use a gravel vacuum to clean up uneaten food and poo that settles on the bottom, but don't vacuum up any actual gravel because that can damage the fish species' natural habitat.
  • Make sure to keep your beta's tank away from direct sunlight because it can cause algae growth and this will upset the water quality. Plus, betas don't have a lid so they can jump out of their tanks! If you have other pets in the house keep the beta somewhere where they can't get to it because they will likely try and eat it!
  • Try to keep the beta's tank away from appliances that make loud noises like a TV or stereo. This is because they can become startled by loud noises and might jump out of their tanks which can be very dangerous for them!
  • Every month add some Dechlorinator to make sure the water is clean at all times. If you don't add dechlorinator with the new water when you change the water it can cause problems with your beta's health!
  • Give your beta a treat when you clean its tank! You can put in a little food in the tank and let it eat for a few minutes to make sure it gets some extra nutrition!
Giant Betta Fish Care

Giant Betta Fish Care Questions & Answers:

Q: Why Is My Betta Fish Slimy? 

A:  If your betta is slimy, it could be from poor water quality or bacterial infection. Try changing the water and cleaning the tank more often to reduce this problem.

Q: Why Does My Giant Beta Have Red Streaks on Its Body? 

A: If you see red streaks on your bet This is a sign of poor water quality and you should buy some dechlorinator and clean your tank.

Q: Why Is My Beta's Tail Curling? 

A:  If your betta has a curled tail it probably means that the tank water isn't warm enough for this species of fish. Try using a heater to make sure that your beta's home is at the right temperature!

Q: Why Is My Betta Floating Upside Down? 

A:  If your beta is floating upside down it probably means that there's too much oxygen in the water. Try adding some extra water conditioner to increase the amount of dissolved oxygen in the tank.

Q: How Can I Tell If My Betta Fish Is a Male or a Female? 

A:  The easiest way to tell the difference between a male and female betta fish is to look at its fins. If it has long flowing fins like wings then it's most likely a girl, but if it has short stubby ones then it's probably a boy!    

Q: Are Giant Bettas Healthy?

A: Yes, Giant bettas are very healthy! They can live up to seven years if properly cared for. Over time their colors will become brighter and they will grow to be a lot bigger than what you initially began with! Most people feed their fish one kind of pellet food that has been specifically made for bettas, also known as BettaMin. This is the most nutritious option available for your beta and really does help it out quite a bit.

Q: Are King Betta the Same as a Giant Betta?

A: The King betta is frequently mistaken with the Giant betta. The King, on the other hand, is generally the same size as a typical betta fish, but the Giant variety may reach four to six inches in length, truly deserving its name.

The Giant betta's appearance can be attributed to its natural conditions of origin. Its most distinguishing feature can be recognized by its large size; length reaching up to six inches. The body color may also be an indicator of the fish's sex.

Males generally display brilliant colors with vertical black bands on their bodies; while female bettas are generally smaller in size but without these distinctive bands which make them rather dull-colored compared to males.


If you follow the guidelines mentioned above and care for your fish properly then your betta should be very healthy and happy! It may take a little while for them to get used to their new home but patience and effort go a long way in terms of creating a strong relationship between you and your pet.

Giant Bettas do not necessarily need filters or regular water changes, however, they will appreciate some current in their tanks as it makes them feel comfortable.

Giant Betta fish care is very easy because they are not too fussy about what kind of environment, they live in. Hence, they are a great tropical fish to start off with if you're new to the hobby!

Sarah Robertson

I am a passionate blogger who also happens to be a fish keeping enthusiast. Writing about my hobby is something that I absolutely love to do, and it's no secret that my chosen topic is always centered around fish keeping.

Sarah Robertson

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