Giant Gourami
Osphronemus goramy
Giant Gourami (Osphronemus goramy) — Intermediate care, Semi-aggressive, under Gourami. Minimum tank in the app: 125 US gal min; aim for 68–86°F and pH 6–7.8. The Giant Gourami is ideal for experienced aquarists who can provide ample space and maintain stable water conditions.

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
Creating an optimal environment involves a spacious tank with a minimum of 475 liters, ensuring both open swimming areas and ample hiding spots to mitigate territorial disputes. Use gentle water flow and a mix of substrate, including smooth gravel or sand, to enhance comfort. Lighting should be moderate to simulate their natural habitat, encouraging natural behaviours while avoiding overly bright or harsh conditions.
What Do Giant Gouramis Eat?
As omnivores, Giant Gouramis are generally unhurried feeders, which can create competition issues when housed with faster, more aggressive eaters. A varied diet rich in both plant and protein sources is essential for maintaining their health and enhancing coloration.
Giant Gourami Tank Mates
Ideal companions include similarly sized, calm species that occupy different swimming zones to minimize aggression. Smaller or overly active fish may provoke stress or conflict. It's advisable to avoid keeping more than one Giant Gourami, as intra-species aggression can escalate in confined spaces or with limited visual barriers.
Are Giant Gouramis Good for Beginners?
We rate this as intermediate. Budget time for testing, maintenance, and watching behaviour if the water looks fine but the fish do not. Aquarists often underestimate the space and filtration requirements, leading to poor water quality that can stress the fish. Another common error is inadequate tank mate selection, which can result in territorial disputes and aggression.
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