Can Koi Angelfish live with Giant Gourami?
Caution — with care
Why
- Giant Gourami may eat Koi Angelfish; add only full-grown adults, because juveniles and fry will be picked off.
- Giant Gourami is semi-aggressive and may bully the peaceful Koi Angelfish — give lots of space and cover.
Sweet spot: both do well at 78–82°F and pH 6.5–7.5 — aim there.
Side-by-side
| Koi Angelfish | Giant Gourami | |
|---|---|---|
| Temperature | 78–84°F | 72–82°F |
| pH | 6–7.5 | 6.5–8 |
| Hardness (GH) | 3–12 dGH | 5–19 dGH |
| Adult size | 6" | 24" |
| Temperament | Peaceful | Semi-aggressive |
| Min tank | 30 gal | 200 gal |
Together, plan on at least 200 gallons.
How to make it work
- Add only full-grown adults — never juveniles, which will be eaten.
- Use a larger, well-decorated tank with sightline breaks, keep everyone well-fed, and add the calmer fish first.
Where to buy
- Koi Angelfish: buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Giant Gourami: buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
Live-animal shipping: add a heat pack below 50°F, expect weather holds above 90°F, and schedule delivery for a moderate week when someone can receive it promptly.
Build a full tank around this stocking →Everything compatible with Koi Angelfish · …with Giant Gourami