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Giant Gourami

Giant Gourami

Origin

South East Asia

Habitat Size

400-600 Liters

Water Type

Fresh Water

Water Temperature

22º-28ºC

Cost in India

₹300 - ₹500

Size

18 - 36 inches (Large)

Diet

Omnivore

A Giant Gourami with textured scales rests on a sandy bottom of an aquarium
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by Happy Pet TeamUpdated on 10 Nov 2025

Giant Gourami (Osphronemus goramy) is a larger and more intelligent freshwater aquarium fish species. Characterized by its stout body, fleshy lips, and curious but non-aggressive behavior, the fish can grow over 20 inches long in the home aquarium.

Renowned for recognizing their owners and stealing food from their hands as well, Giant Gouramis are the favorite of aquarists among those who prefer interactive fish. But being such big fish, they need big tanks and experienced handling.

Origin of the Giant Gourami

Native to Southeast Asia, the Giant Gourami inhabits rivers, lakes, and floodplains of Indonesia, Thailand, Cambodia, and Malaysia. They are low-oxygen tolerant and can breathe atmospheric air through their labyrinth organ — much like Bettas.

They are also farmed as a food fish in most regions, but in home tanks as an aquarium fish, they are appreciated for their intelligence, durability, and personality.

Temperament of the Giant Gourami

Giant Gouramis are also calm in nature, especially when young. They become territorial when they mature and become aggressive towards other fish of the same gender, especially other male gouramis.

They aren't overly active swimmers and mostly spend time patrolling their territory and keeping an eye on what happens outside of their tank. They are such an easy fish to observe and hang out with because they are so laid-back — they even get used to the owners eventually.

Compatibility of Giant Gourami with Other Fish

Giant Gouramis are compatible with:

  1. Silver Dollars
  2. Plecos
  3. Big Barbs
  4. Clown Loaches
  5. Bichirs

Avoid keeping small or nippy fishes such as Tiger Barbs or Cichlids that will attack the fins or fight. Keep them apart or in a big tank with similarly sized fishes.

Price Range of the Giant Gourami

The Giant Gourami is moderately priced and ubiquitous. Juveniles in India tend to be priced between ₹400–₹1000 ($6–$12), keeping size and color variety (albino and gold varieties) in view.

Characteristics

Temperament

Aggressive

Friendly

Compatibility with other fishes

Not Friendly

Super Friendly

Habitat Size

Small

Large

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Habitat Requirements of the Giant Gourami

Initial Setup Cost

₹30,000 - ₹80,000

Water Temperature

22º -28ºC

Water Type

Fresh Water

PH Level

6.5 - 7.5

Tank Setup

  1. Tank Type: Freshwater
  2. Minimum Tank Size: 200 gallons for adult
  3. Substrate: Fine sand or smooth gravel
  4. Decor: Driftwood, large rocks, and sturdy plants
  5. Lighting: Moderate, with shaded spots

Water Conditions

  1. Temperature: 24–30°C (75–86°F)
  2. pH Level: 6.5–8.0
  3. Water Hardness: 5–20 dGH

Environment Requirements

Provide open swimming space and good filtration. As they are air-breathing, leave a small gap at water level to the tank lid. Provide floating plants or low light to calm them down.

Essential Equipment

Aquarium tank

Water filter

Heater

Light

Substrate

Nutrition Care of the Giant Gourami

Avg Monthly Expenses

₹300 - ₹ 500

Giant Gouramis are omnivorous and love plant and animal foods.

Recommended Foods:

  1. Float sticks or pellets for large fish.
  2. Blanched spinach, lettuce, or peas.
  3. Live or frozen foods such as prawns, worms, or insects.
  4. Melon or banana fruit (at times).

Feeding Instructions:

  1. Feed once or twice a day in moderate amount.
  2. Remove leftovers to avoid fouling of water.
  3. Give vegetable matter occasionally to prevent digestive disorders.
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Health

Common Health Issues

Fin rot

White spot / ick

Velvet

Bacterial infections

Swim bladder inflammation

Fungal infections

Signs of good health

Active

Bright coloration

Good apetite

Signs of sickness

Loss of appetite

Frequent hiding

Lethargic behaviour

Dull coloring

Tattered fins

Common Problems of the Giant Gourami

Hole-in-the-Head Disease

A parasitic or bacterial infection linked to low water quality and vitamin deficiency.

  1. Symptom: Tiny pinpricks of holes in the head or lateral line.
  2. Treatment: Vitamin addition to food and frequent, large water changes.

Bloat (Dropsy)

Secondary to bacterial infection or overfeeding.

  1. Symptom: Standing scales and rounded body.
  2. Treatment: Isolate affected fish, feed peas to be broken down, and treat with antibacterial.

Fungal Infection

Most often following trauma or filthy conditions.

  1. Symptom: White, cottony growth on body or fins.
  2. Treatment: Antifungal drug and better tank cleanliness.

Prerequisites for a Fish

Adequate tank space

Cleanliness

Effort & commitment

Enriching Environment

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Written by

Happy Pet Team

Author

Team Happy Pet is a passionate collective of pet experts, enthusiasts, and advocates dedicated to sharing trusted and insightful content.

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Frequently Asked Questions

What size do a Giant Gourami get?

They reach 18–20 inches in aquariums and over 24 inches in the wild.

Will they keep with other fishes?

Yes, but only with same-temperament and same-size fishes.

How long will Giant Gouramis live?

With good care, they'll live 15–20 years or more.

Will they need a heater?

Yes, if under 24°C room temperature.

Are Giant Gouramis suitable for beginners?

They're robust but better suited to experienced aquarists due to their size and space requirements.