Can Giant Gourami live with Oscar?
Caution — with care
Why
- Oscar is aggressive and will fight with Giant Gourami — two scrappy species in one tank means constant territorial conflict.
Sweet spot: both do well at 74–81°F and pH 6.5–8 — aim there.
Side-by-side
| Giant Gourami | Oscar | |
|---|---|---|
| Temperature | 72–82°F | 74–81°F |
| pH | 6.5–8 | 6–8 |
| Hardness (GH) | 5–19 dGH | 5–20 dGH |
| Adult size | 24" | 16" |
| Temperament | Semi-aggressive | Aggressive |
| Min tank | 200 gal | 75 gal |
Together, plan on at least 200 gallons.
How to make it work
- Use a larger, well-decorated tank with sightline breaks, keep everyone well-fed, and add the calmer fish first.
Sort it with: A larger tank · GH remineraliser
Design the whole tank, not just the stocking
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Design a tank with Giant Gourami, Oscar →Everything compatible with Giant Gourami · …with Oscar