Giant Gourami
Osphronemus goramy
The Giant Gourami (Osphronemus goramy) is a semi-aggressive fish that's a good step up once you have a little experience. Give it a tank of at least 475 litres (125 US gallons), water held at 68-86°F, and a pH of 6-7.8.
Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.
Natural distribution
Southeast Asia
- East & Southeast Asia
Regional colours match the stocking calculator's origin map.
Giant Gourami Tank Setup
Give them at least 475 litres (125 US gallons) with gentle flow, water at 68-86°F, and a pH around 6-7.8. Gouramis breathe air at the surface, so keep it clear of thick film. They grow to around 70 cm, so plan the tank size and filtration for a full-grown adult rather than the small juvenile you see in the shop.
What Do Giant Gouramis Eat?
They're not fussy eaters - feed a varied diet, rotating good-quality dry, frozen, and gel foods rather than the same thing every day, and match the food size to their mouths.
Giant Gourami Tank Mates
Requires a large tank and good filtration. The Giant Gourami is semi-aggressive, which is the first thing to weigh up when you choose tank mates. At around 70 cm fully grown, it needs tank mates that can hold their own against its size and appetite. Before you buy, run your full stocking list through our stocking calculator. It weighs temperament, adult size, and water needs together, which a single species page can't do on its own.
Are Giant Gouramis Good for Beginners?
Doable once you test water regularly and catch problems before fish look sick. If this is your first tank, pick something more forgiving and come back later.
Giant Gourami - frequently asked questions
What size tank do Giant Gouramis need?
Giant Gouramis need a tank of at least 475 litres (125 US gallons). A bigger tank is always easier to keep stable, and gives them more room to settle in and behave naturally.
What water parameters do Giant Gouramis need?
Keep them at 68-86°F with a pH of 6-7.8, steady rather than chased to an exact figure. In a cycled tank, ammonia and nitrite should both read 0 ppm, with nitrate kept low through regular water changes.
What do Giant Gouramis eat?
Giant Gouramis are omnivores and aren't fussy eaters. Feed a varied mix of good-quality dry, frozen, and gel foods, and match the food size to their mouths. Feed small amounts once or twice a day, and remove anything they don't eat.
Are Giant Gouramis good for beginners?
Giant Gouramis are best for keepers with a little experience. They are manageable once you test water regularly and catch problems early; a complete beginner may prefer something more forgiving first.
Common mistakes with Giant Gouramis
- Underestimating tank size - the minimum footprint is 475 litres (125 US gallons); impulse buying into a smaller tank leads to stress and shortened lifespan.
Building a community? Run the full list through the stocking calculator before you add anything else.
Great tank mates
Chosen from temperament, overlapping temperature/pH bands, plausible minimum tank footprints, and size versus yours in App-aquatic data. Hobby nuance always wins - verify stocking and temperament before purchasing.
Fish to avoid mixing with Giant Gouramis
These well-known species are commonly sold alongside this fish but are not recommended tank mates - verify before purchasing.
- OscarPredator - Oscar will eat or injure smaller tank mates
- Pea PufferPredator - Pea Puffer will eat or injure smaller tank mates
- Betta (Male)Predator - Betta (Male) will eat or injure smaller tank mates
