Can Marbled Crayfish live with Pearl Gourami?
Caution — with care
Why
- Marbled Crayfish can grab Pearl Gourami while it sleeps — only fast mid/top-water fish are reasonably safe.
- Almost no shared temperature: Marbled Crayfish wants 64–77°F and Pearl Gourami wants 77–82°F, so only 77°F suits both — too fine a margin to actually hold.
Sweet spot: both do well at 77–77°F and pH 6.5–7.5 — aim there.
Side-by-side
| Marbled Crayfish | Pearl Gourami | |
|---|---|---|
| Temperature | 64–77°F | 77–82°F |
| pH | 6.5–8 | 6–7.5 |
| Hardness (GH) | 5–20 dGH | 5–15 dGH |
| Adult size | 5" | 4.5" |
| Temperament | Aggressive | Peaceful |
| Min tank | 30 gal | 30 gal |
Together, plan on at least 30 gallons.
How to make it work
- Only combine with fast, mid/top-water fish and give the tankmates plenty of escape routes.
- Target the overlapping water-parameter range and acclimate slowly.
Sort it with: An adjustable heater
Design the whole tank, not just the stocking
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Design a tank with Marbled Crayfish, Pearl Gourami →Everything compatible with Marbled Crayfish · …with Pearl Gourami