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Number of Dwarf Gouramis vs Tank Gallon Size [Complete GUIDE]

The freshwater Dwarf Gourami is a popular aquarium fish because of its beauty and rarity. Their varied colouration, patterning, and refined appearance make them a welcome addition to any fish tank. Remember that Dwarf Gourami have particular needs regarding tank size and water quality. In this article, we will provide a detailed tutorial on determining which dimension tank is best for your Dwarf Gourami and how to set up their habitat correctly.

Dwarf Gouramis Tank Size Guide: How Many Dwarf Gouramis Can You Keep in an Aquarium?

The maximum size of Dwarf Gouramis is 3.5” in length. They cannot grow substantially even if they are fully healthy or at full younger age.

As a general rule of thumb, a 10-gallon aquarium is enough for Dwarf Gourami. You can house 3 Dwarf Gourami in a 10-gallon tank, a 60-gallon tank can hold 16, a 75-gallon aquarium can hold 20, a 50-gallon aquarium can hold 14, and a 20-gallon aquarium can hold 5 Dwarf Gourami.

In overcrowded tanks, it is recommended to add 20% less fish.

On average, they have 3-5 years of life span.

The well-being of these stunning fish depends on careful filtration and constant attention to water quality. You can make your Dwarf Gourami feel comfortable and thrive with the right room and care.

Origin and Habitat

India, Bangladesh, Myanmar (Burma), and some regions of Thailand are only some of the nations in Southeast Asia where you can find dwarf gouramis. They can be found in wetlands, rivers, streams, canals, rice paddies, marshes, and floodplains with standing water.

The life span of Dwarf Gourami

With the proper maintenance and a well-maintained tank, a Dwarf Gourami can live for up to 4-5 years. However, some people can extend their lives by seven years or more with special treatment. Their lifespan can be affected by genetics, water quality, nutrition, and the general tank environment. Routine care, a nutritious diet, and a stress-free environment can ensure the health and lifespan of Dwarf Gourami.


Dwarf Gouramis range in size because of characteristics like age, sex, and general health. Mature male Dwarf Gouramis normally grow to 3.5 inches, while females are typically smaller at 3 inches on average.

Types of Dwarf Gourami

Following are the different types of Dwarf Gourami:

  • Blue Dwarf Gourami
  • Flame Dwarf Gourami
  • Neon Blue Dwarf Gourami
  • Honey Dwarf Gourami

All these Dwarf Gourami have almost the same kind of nature and size, so the same habitat should be followed to care for these Gouramis.

Minimum tank size for Dwarf Gourami

Dwarf Gourami are highly sociable, group-oriented fish that do best in communities of at least four to five individuals. With greater room to swim and cleaner water, a 10-gallon tank is a minimum requirement for a school of three adult Dwarf Gourami.

Dwarf Gourami are picky eaters, so a well-planted aquarium with hiding spots and territories is essential; for better nourishment, a 20-gallon tank would be better, giving more room to do that job.

How many Dwarf Gourami are in a 3-gallons tank?

A 3-gallon tank is not recommended for keeping Dwarf Gourami. The minimum tank size for keeping Dwarf Gourami is 10 gallons. If you don’t have enough room/tank to accommodate Dwarf Gourami, don’t try to endanger their life in small tanks. You can keep guppies in a 3-gallon tank.

Keep reading: Number of Guppies vs Tank Gallon Size [Complete GUIDE]

Factors to Consider When Determining Tank Size for Dwarf Gourami

A few considerations exist when deciding the best tank size for your Dwarf Gourami. Fish characteristics include physical dimensions, activity levels, and social interactions with other fish.

Size of the Fish

Dwarf Gourami typically grow 3.5 inches; a 10-gallon tank is enough for 3 Dwarf Gourami fish.

Aggression level

Dwarf Gourami are very peaceful; they don’t have disputes for territories and have deficient aggression levels. Still, for factors of safety, you need to have proper supervision of the tank to have a large amount of Dwarf Gourami in a tank.

Hiding Places

A more natural and peaceful atmosphere can be achieved by giving them plenty of places to hide.

Your Dwarf Gourami will appreciate the natural atmosphere you create with the help of live plants, pebbles, and driftwood.


while natural explorers, Dwarf Gourami, need a substrate that doesn’t restrict their movement while they look for food. A sandy or fine-gravel ground is advised to simulate their natural habitat best and encourage natural browsing behaviour.


Ensure you have enough plants in your tank to absorb the carbon dioxide, nitrate, and other toxic waste from the fish excretion.

Dwarf Gourami can survive on their own with just plants and pests. So plantation is essential.


To grow, Dwarf Gourami need clean, well-filtered water. High-quality canisters or power filters with a flow rate of 6-8 times the tank volume per hour are recommended. To keep your filter running, choose and maintain one that fits your tank.


Dwarf Gourami need a steady and warm water temperature of 72-80°F. A high-quality submersible heater that fits your tank is crucial. To maintain a stable temperature, check the temperature using a thermometer and make adjustments.


Dwarf Gourami do not require intense lighting and may even prefer low to moderate levels of light.

Use LED light which can save electricity as well as give you proper lighting.

Water Quality

Dwarf Gourami flourish in a certain set of water parameters. They prefer a pH range of 6 to 8, a water hardness of 10-20 dGH, a salinity of 1.5 – 2.5, and a 72-80°F temperature range.

It is critical to keep water parameters consistent by making regular water changes and monitoring the tank’s water chemistry. Using a high-quality filter can also assist in maintaining.

Keep reading: How to Naturally Lower PH in Aquarium.

How many Dwarf Gourami are in a 10-gallons tank?

It is possible to keep a small school of Dwarf Gourami in a tank of 10 gallons. However, keep in mind that these fish require a larger tank size, ideally 20 gallons or more. Since Dwarf Gourami are so aquatic, they benefit from more swimming rooms.

Considering that an adult Dwarf Gouramis is about 3.5 inches long, a 10-gallon aquarium might house about 3 Dwarf Gouramis. The health of the fish depends on the availability of suitable hiding places, plants, and swimming areas. Maintenance of water systems and monitoring water quality metrics are also important for their well-being.

How Many Dwarf Gouramis in a 55-Gallon Tank?

55 gallons of the tank can keep up to 18 Dwarf Gouramis. Keeping 20% less fish in a large tank is recommended, i.e. 15 Dwarf Gouramis can have an ideal environment in a 55-gallon tank.

Dwarf Gourami compatibility with other fishes:

Ideal Tank mates of Dwarf Gourami:

When choosing tank mates for Dwarf Gourami, selecting fish that can tolerate the same water conditions and are not aggressive or territorial is important.

  • Neon Tetras, Ember Tetras, Rasboras, Guppies, Platies, Swordtails, and Corydoras catfish are the best tank mates for Dwarf Gouramis.
  • Dwarf Gouramis are often found in the tank’s upper and intermediate levels. So, bottom dwellers, like the Corydoras catfish or little loaches (like the Dwarf Loach) or gentle fish like the Kuhli Loach, might be good company.
  • Avoid territorial, aggressive, fast swimmers and those fishes who do fin nipping like larger cichlids, aggressive barbs (like Tiger Barbs), or aggressive catfish species.

Furthermore, it is recommended not to overload the aquarium since doing so can lead to poor water quality and the discomfort of the fish.

Dwarf Gourami in a glass bowl

Keeping Dwarf Gourami in a glass bowl is not advised since this can harm their health.

Dwarf Gourami can only flourish in conditions where they have plenty of room to swim, good water quality, and enough filtration.

Fish kept in glass bowls may suffer from poor water quality and other health problems due to the bowls’ tiny size, lack of filtration, and inadequate aeration. In addition, Dwarf Gourami are curious, active fish that benefit from having lots of room to swim around in.

This is why it’s crucial to supply your Dwarf Gourami with a clean, well-maintained tank of the appropriate size.

How Many Dwarf Gouramis in a 15-Gallon Tank?

15 gallons of the tank can keep up to 5 Dwarf Gouramis. But this sized gallon is not recommended for Dwarf Gaurami. A minimum of 20-gallon tank is a good fit for the living of Dwarf Gouramis.

A person having less space in the home can even use a 10-gallon tank in compulsion.

You can keep guppies in a 15-gallon tank.

Keep reading: Number of Guppies vs Tank Gallon Size [Complete GUIDE]

Orientation of Dwarf Gourami in a tank

Single Dwarf Gourami in a Tank

Dwarf Gourami is a schooling fish and cannot accept living alone. The boredom will make your fish ill or even can cause death. It is recommended to have a school of 3-5 dwarf gouramis in a tank.

Male to female ratio

One male for every two females is the standard recommendation. This proportion helps spread out any aggressive tendencies and lessens the likelihood of widespread violence between males.

Only male-oriented tank

Having multiple male Dwarf Gouramis in the same tank can cause issues.

Male Dwarf aggression Factors, including tank size, available territories, and water quality, can all affect the behaviour of gouramis. Aggression is more likely to happen in tanks that are too small or don’t provide enough places to hide.
Therefore, a 2:1 male-to-female ratio is recommended in a tank.

Breeding of Dwarf Gouramis

Certainly! Here are some key points about breeding Dwarf Gouramis:

  • Set up a separate breeding tank with plants and hiding spots.
  • Choose a healthy male and female for breeding.
  • Condition the pair with a varied diet of live or frozen foods.
  • Introduce the female to the male’s tank.
  • Watch for courtship behavior, including bubble nest building and elaborate displays.
  • During spawning, the male wraps around the female to fertilize the eggs.
  • Remove the female after spawning to protect her from harm.
  • The male guards the bubble nest and tends to the eggs.
  • Once the fry is free-swimming, remove the male.
  • Feed the fry infusoria or specialized fry foods.
  • Maintain good water quality with slightly warmer temperatures and soft to slightly acidic water conditions.

Diet Plan of Dwarf Gourami

As omnivores, Dwarf Gourami have relatively basic dietary needs.

  • Give them premium flakes or pellets made especially for tropical fish.
  • Both live and frozen brine prawns and daphnia can occasionally be added to their diet.
  • Mashed peas and blanched spinach can also be added.
  • Don’t stuff yourself.
  • Keep an eye on what they’re eating and remove any leftovers immediately.
  • You might enhance their diet with freeze-dried goodies.
  • They’ll be healthier and more vibrant if they eat various nutritious foods.

Disease and treatment

Following is the list of diseases which is common in Dwarf Gourami:

  • Fin and Tail Rot
  • Columnaris
  • Viral Haemorrhagic Septicaemia
  • Dropsy
  • Pop-eye Disease
  • Eye-cloud / Cloudy Eyes
  • Mouth Fungus
  • Furunculosis
  • Fish Fungus / Fungal Infections
  • Velvet
  • Ich
  • Anchor Worms
  • Fish Lice
  • Hole in the Head
  • Swim Bladder Disorder
  • Tumours
  • Gill Parasites
  • Ammonia Poisoning
  • Slime Disease


The following symptoms should be seen in the body of Dwarf Gouramis related to the above-mentioned diseases:

  • Pale gills
  • Darkness in the colour of fish
  • Swollen anus
  • Blotted belly
  • Swelling of eyes
  • Difficulty in swimming
  • Loss of appetite
  • White patches around the mouth
  • Rubbing body against the hard surfaces
  • Hollow pits on the head
  • Floating upside down


  • Regular change of water
  • Check the pH of the water
  • Check the temperature of the water
  • Avoid overfeeding
  • Fish vaccination should be done with proper consultation with the veterinarians.
  • Disinfectants should be added to the water
  • Quarantine the infected fish
  • Feed vitamin riched food to infected fish
  • Ammonia level should be maintained at zero inside the tank
  • Decontamnates like iodine should be used in water

Number of Dwarf Gourami in different kinds of tanks

How many Dwarf Gourami are in a 20-gallons tank?

A 20-gallon tank is good enough for keeping 6 Dwarf Gourami. A 20-gallon tank is recommended for Dwarf Gourami for their comfortable living in a community.

How many Dwarf Gourami are in a 25-gallons tank?

A 25-gallon tank is good enough for keeping eight Dwarf Gourami.

You can also keep Neon Tetras in a 25-gallon tank.

Keep reading: Number of Neon Tetras vs. Tank Gallon Size [Complete GUIDE]

How many Dwarf Gourami are in a 30-gallons tank?

A 30-gallon tank is good enough for keeping 9 Dwarf Gourami. You can also keep Glofish in a 30-gallon tank.

Keep reading: Number of Glofish vs. Tank Gallon Size [Complete GUIDE]

How many Dwarf Gourami are in a 75-gallons tank?

A 75-gallon tank is good enough for keeping 23 Dwarf Gourami. It is good enough to maintain and breed a large amount of Dwarf Gourami in a pleasant environment.

Keeping 20% less of Dwarf Gourami in large crowded tanks is recommended.

If you are an aquarium explorer and want to have fun in your aquarium, You can keep cichlids in a 75-gallon tank.

Keep reading: Number of Cichlid vs. Tank Gallon size [Complete GUIDE]

How many Dwarf Gourami are in a 100-gallons tank?

A 100-gallon tank is good enough for 30 Dwarf Gourami. It is good enough to maintain and breed a large amount of Dwarf Gourami in a pleasant environment.

Keeping 20% less of Dwarf Gourami in large crowded tanks is recommended.

If you are an aquarium explorer and want to have fun in your aquarium, You can keep mollies in a 100-gallon tank.

Keep reading: Number of Mollies vs. Tank Gallon Size [Complete GUIDE]

How many Dwarf Gourami are in a 125-gallons tank?

A 125-gallon tank is good enough for keeping 38 Dwarf Gourami. It is good enough to maintain and breed a large amount in a pleasant environment. Keeping 20% less of Dwarf Gourami in large crowded tanks is recommended.

If you are an aquarium explorer and want to have fun in your aquarium, You can keep mollies in a 125-gallon tank.

Keep reading: Number of Mollies vs. Tank Gallon Size [Complete GUIDE]

Aquarium Decorations for Dwarf Gourami

Dwarf Gourami’s health may depend partly on the ornaments you use in their aquarium. Providing them with places to hide and establish territories can help keep them calm and content in their tank.

Dwarf Gourami tanks can be decorated with pebbles, driftwood, and live plants. They can also create an environment that looks and feels just like the animal’s native habitat.

Some aquarium ornaments, including rocks with sharp or rough edges, can be dangerous to your Dwarf Gourami. Before adding anything to the aquarium, a thorough inspection should be performed to identify and eliminate any hazards.


  • The health and happiness of your Dwarf Gouramis depend on you providing an environment that’s just right for them.
  • A school of 3 should have at least 10 gallons.
  • In addition to clean water and effective filtration, a properly planted aquarium with plenty of hiding places and territory is essential for discus fish.
  • When deciding on the optimal tank size, it’s also essential to consider the fish’s size, aggressiveness, and compatibility with other tankmates.
  • These graceful fish can thrive in the right conditions for 4–5 years.

Q/A Session

Can I keep 1 Dwarf Gourami in a 5-gallon tank?

Yes, we can keep 1 Dwarf Gourami in a 5-Gallon tank, but keeping a single fish in a tank is not recommended.

How many dwarf gourami per gallon?

The 1 inch per gallon should be followed as a rule of thumb. So in a 10-gallon tank, we can keep three dwarf gourami.

How many gouramis can you put in a 29-gallon tank?

We can put nine gouramis in a 29-gallon tank.

How many Dwarf Gourami fish can you have in a 5.5-gallon tank?

2 Dwarf Gouramis can be easily accommodated in a 5.5 gallons tank.

Can three dwarf gourami live together?

Yes, 3 Dwarf gouramis can live in a 10-gallon tank.