Can Altum Angelfish live with Giant Gourami?
Caution — with care
Why
- Only a narrow temperature overlap — keep both around 82°F.
- Only a narrow pH overlap — keep both around 6.5.
- Only a narrow water hardness overlap — keep both around 5 dGH.
- Giant Gourami is semi-aggressive and may bully the peaceful Altum Angelfish — give lots of space and cover.
- Giant Gourami is large enough to threaten a small Altum Angelfish — usually fine once both are adult, but watch new additions.
Sweet spot: both do well at 82–82°F and pH 6.5–6.5 — aim there.
Side-by-side
| Altum Angelfish | Giant Gourami | |
|---|---|---|
| Temperature | 82–88°F | 72–82°F |
| pH | 4.5–6.5 | 6.5–8 |
| Hardness (GH) | 1–5 dGH | 5–19 dGH |
| Adult size | 7" | 24" |
| Temperament | Peaceful | Semi-aggressive |
| Min tank | 75 gal | 200 gal |
Together, plan on at least 200 gallons.
How to make it work
- Target the overlapping water-parameter range and acclimate slowly.
- Use a larger, well-decorated tank with sightline breaks, keep everyone well-fed, and add the calmer fish first.
Sort it with: An adjustable heater → Chewy GH remineraliser → Aquarium Co-Op
Where to buy
- Altum 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 Altum Angelfish · …with Giant Gourami