Can Moonlight Gourami live with Opaline Gourami?
Caution — with care
Why
- Moonlight Gourami and Opaline Gourami are both labyrinth fish — they claim the same surface territory and will fight, especially between males.
- Only a narrow water hardness overlap — keep both around 6–7.5 dGH.
- Opaline Gourami is semi-aggressive — give the peaceful Moonlight Gourami plenty of space, cover and broken sight lines.
Sweet spot: both do well at 77–82°F and pH 6.5–7.6 — aim there.
Side-by-side
| Moonlight Gourami | Opaline Gourami | |
|---|---|---|
| Temperature | 77–86°F | 72–82°F |
| pH | 6.5–7.6 | 6–8.5 |
| Hardness (GH) | 6–7.5 dGH | 5–20 dGH |
| Adult size | 6" | 6" |
| Temperament | Peaceful | Semi-aggressive |
| Min tank | 55 gal | 30 gal |
Together, plan on at least 55 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.
- Target the overlapping water-parameter range and acclimate slowly.
Sort it with: GH remineraliser
Design the whole tank, not just the stocking
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Design a tank with Moonlight Gourami, Opaline Gourami →Everything compatible with Moonlight Gourami · …with Opaline Gourami