Giant Betta Tank Size, Lifespan, Appearance, Behavior & Detailed Care Guide

Giant betta is the biggest type of betta fish, as implied by its name. It is a member of the Osphronemidae family and goes by the scientific name Betta anabantoids.

This fish has a maximum length of 5 to 7 inches, which is about twice as big as a typical betta fish. It is also the calmest betta and is mostly chosen by aquarists. Once more, you will like this fish because of its beautiful beauty, particularly its fins.

This article will show you how to take care of gigantic betta fish, maintain the ideal aquarium environment, and enjoy having healthy pets as companions.

Origin of Giant Betta and Life Span

Freshwater fish from Southern Kalimantan, Indonesia, and other parts of Asia make up the largest betta fish. This enormous betta fish was created by careful breeding in captivity, where the big gene produced the phenotypic.

The lower lifetime of the largest betta fish is caused by a weakened immune system. The larger betta fish are also more susceptible to bacterial illnesses.

However, big betta fish may survive for three to five years with proper care.

Giant betta

Appearance and Size

While female gigantic bettas are more subdued in color, the males exhibit stunning colors. These fish typically show up in eye-catching vibrant colors of blue, green, red, and orange.

However, they still have the betta fish’s vibrant fins. The most attractive type of betta is the enormous variety.

What size may huge bettas reach? The female giant betta is somewhat smaller than the male giant betta, which may reach lengths of 3.5 to 4 inches. The enormous betta size, however, may grow to be 5 to 7 inches long.

The Behavior of the Biggest Betta Fish in the World

Giant betta fish are less aggressive when compared to normal betta fish. You should refrain from having male bettas in the same tank because of the violence that has been documented during the brooding period. You can, however, keep the enormous betta fish together.

When at ease, the gigantic betta swims in smooth, delicate strokes. However, when under stress, the big betta fish will swim frantically and quickly.

Mating Characteristics

The male Bettas begin by creating a bubble nest for the eggs during the mating season. The male betta likewise darts back and forth while displaying his vibrant fins.

The female gigantic bettas examine the nest carefully and assess its value. The female giant betta will swim away or scavenge the nest if it isn’t in good condition.

The male steps up the show and begins chasing the female while attempting to get her to do a mating dance. He won’t stop the back-and-forth dancing until the woman yields. With plenty of chasing and biting, it can occasionally turn sour.

When the female is ready, the male flips her over and encircles her middle. For fertilization, they shut their ventral and press themselves tightly. The male gathers the eggs after the female has laid them and sets them in the nest where they will hatch later.

Super Giant Betta Fish Care

The same maintenance is needed for these fish as for conventional betta fish. You should be aware of the state of their environment and make sure that it is tidy and algae-free.

Once more, maintain proper water conditions to safeguard the gigantic betta from stress and disease.

Regular procedures for maintaining water quality for gigantic betta fish include:

Every day, check the heater, filter, and water temps.

Every week, check the water’s parameters. A weekly water change should also be performed in small tanks. Perform a 10- to 25% water change in a big tank. Whenever you replace your water, be sure to use dechlorinated water.

At the very least every month, replace the filter material.

Additionally essential for a strong immune system is feeding. Make sure you feed your huge betta the right quantity to prevent problems from overfeeding.

Again, kindly give them food which is more protein-rich for carnivores.

A tiny tank or overcrowding of the big betta fish will cause stress and raise the risk of illnesses, so avoid doing either.

Giant Betta Tank Mates

Because of its calm temperament, this fish may live in a community tank with other fish like Tetras and Rasboras. The male gigantic bettas should not be kept together, though, since they can get violent.

The harlequin rasbora fish in aquarium tank

The Harlequin Rasbora fish

Therefore, while choosing their tank mates, ensure they are more peaceful and smaller than the enormous wild betta.

Female betta, on the other hand, may mate with any fish. They can even be paired with enormous fish of the opposite sex. Giant betta fish may also be kept with cory catfish, ghost shrimp, and kuhli loaches.

There are certain fish you shouldn’t keep with huge bettas. Observe those who swim quickly and pinch the fins of other fish.

Giant bettas will attack male fancy guppies because of their vivid color.

Gouramis are fish that resemble gigantic bettas in appearance and may start fighting if they become confused.

Tank Conditions

For best development and survival, your huge betta fish needs the tank conditions listed below:

Giant Betta Tank Size

In a tank with 5 gallons of water, one enormous betta can live. Therefore, you need at least a 10-gallon tank for a pair. You’ll need a bigger tank if you need to add additional fish. The ideal tank size guideline is to use 1 inch of fish per gallon.

Therefore, if you have the three largest betta fish in the world, each measuring 6 inches, your tank should hold at least 18 gallons. Since fish enjoy rising to the surface to breathe, you should avoid filling the tank all the way up.


For your gigantic betta, any substrate that promotes plant growth is OK. Sand or a fine substrate, however, could be sufficient. To give the substrate a more natural appearance, if at all feasible, add a layer of dried almond leaves.


For high-quality water, wild giant betta fish need proper filtration. However, because they have poor swimming abilities, there shouldn’t be any strong currents in the water where they reside.

To clean the tank and give a moderate flow, you can think about using an air-powered sponge filter.

Water Parameters

The temperature range that giant bettas can withstand is 77 to 86 degrees F. The fish can like 4.5 pH acidic water.

It can thrive in neutral waters, however, the ideal pH range is between 5 and 6.5. The water should have a hardness of 5 to 20 dGH. Once more, make careful to dechlorinate the water before adding fish.


Ample natural illumination is necessary for giant betta fish, especially for plant development. With the exception of the regular day/night cycle, giant bettas have no particular preference for light.

The super-giant betta needs complete darkness to sleep at night. To prevent water temps from rising, however, stay away from direct sunlight and use artificial illumination instead.

Water Heater

To keep the water warm, give the tank a heater.

The fish can jump out of the tank, so be careful to cover it with a lid. The male chases the female more during mating season, which is when this behavior is more noticeable.

Plant and Decorations for Giant Betta

A live plant aquarium is ideal for a super-sized betta, which favors big, broad leaves. Choose plants like java ferns and Anubias that can thrive in an acidic atmosphere. The big leaves give the bettas a floating place to hide.

Avoid using decorations with sharp edges to protect the fish fins.

Feeding Giant Betta

Giant betta fish are carnivorous by nature; in the wild, giant bettas like consuming bloodworms, mosquito larvae, and shrimp. It’s essential to give your fish the right diet if you’re a fish farmer. Two times every day, give the gigantic betta modest amounts of food.

Pellets designed for carnivores should make up the gigantic betta’s diet. Additionally, you can include meaty dishes from fresh, frozen, or freeze-dried sources in your diet. Please refrain from giving your largest betta fish in the world hard shells to eat because doing so will impact digestion.

Make careful not to overfeed them since this leads to stress and constipation. Additionally, a bloated abdomen might cause a dangerous swim bladder disease in your fish. When giant betta are overfed, the surplus feed decomposes, causing poisonous chemicals to build up in the tank and may kill the fish.

More may be consumed by young gigantic betta than by older ones, but you should avoid overfeeding. But compared to typical bettas, adult big bettas need more protein.

Breeding the Giant Betta

The fish are predominantly enormous in size. The majority of the average-sized bettas that the trait carriers generate are half the size of the projected enormous bettas.

To put it another way, you should breed a pair of gigantic betta fish if you want to produce giant children.

However, if you breed a gigantic betta with a betta splendens, their progeny will carry the trait (carrier). The size of this kind of fish barely increases by a few inches between standard and enormous betta.

Therefore, look for healthy male bettas with the following traits when selecting a breeding pair.

Young giant betta fish between the ages of 4 and 12 months, as they become less fertile after their first year.

Compared to other betta species, giant betta fish are less likely to contract illnesses. They still need to be properly cared for, which will lower the likelihood of sicknesses.

Poor water quality can lead to illnesses that afflict this enormous betta fish, including Bacterial diseases, and yeast infections, such as fin rot.

Maintain a clean environment for your gigantic betta fish to avoid such infections. Clean the tanks, and keep the water parameters acceptable with regular water changes and monitoring.

Constipation, which develops as a result of overfeeding, is another problem that affects gigantic betta fish. This problem is widespread and has the potential to kill your fish. Make sure you provide them with the proper food and a healthy diet.

Here are some remedies for gigantic betta fish that you might want to think about.

With the use of catappa Indian almond leaves, parasites are avoided, bacterial development is inhibited, tension and constipation are eased, pH is adjusted, and the fish color is even stimulated.

Since the leaves are typical of Southeast Asia, they also reflect their natural surroundings.

Methylene blue Aquarium salt is required as a first-aid therapy for your fish, especially when they have constipation, in the event of fungal exterior fungal infections.

Once more, a salt bath encourages rapid healing of wounds and recovery from other interior and external ailments.

The best medication for treating bacterial infections in fish is Melafix.


Is giant betta the same as king betta?

Big and king betta fish are two very distinct species. Despite coming from the same plakat betta hybrid, the two species are different sizes.

King betta fish can only reach a length of three inches, whereas giant betta fish may reach lengths of three to seven inches. Consequently, the gigantic beta, followed by the king betta and the betta splendens, is the biggest.

What are the similarities between betta and king betta?

Blue, red, and green marble features giant and king bettas.

King betta fish and huge betta fish both have a three-year lifespan, while gigantic bettas can live much longer.

You shouldn’t keep gigantic fish and king betta fish together since they are both quite aggressive and unpredictable.

How fast does a giant betta grow?

Giant Bettas grow more quickly than typical Bettas do. If conditions are appropriate, young giants can reach maturity in about 2 to 3 months. Although this fish reaches adulthood at one year, its growth ceases after 18 months.


Giant betta fish are excellent pets and are easy to maintain. We have walked you through a number of techniques in this article for caring for your vibrant, enormous wild betta fish. The big betta fish need the same conditions as regular betta fish and even more than that.

Make sure your tank is configured appropriately, including the size and water specifications. Once more, feed your fish the right meals to improve their immunity. With proper maintenance, your large betta fish will stay healthy and have a longer lifespan.