Can Thai Devil Crab live with Opaline Gourami?
Caution — with care
Why
- Thai Devil Crab can grab Opaline Gourami while it sleeps — only fast mid/top-water fish are reasonably safe.
Sweet spot: both do well at 75–82°F and pH 7.5–8.5 — aim there.
Side-by-side
| Thai Devil Crab | Opaline Gourami | |
|---|---|---|
| Temperature | 75–84°F | 72–82°F |
| pH | 7.5–8.5 | 6–8.5 |
| Hardness (GH) | 8–18 dGH | 5–20 dGH |
| Adult size | 2" | 6" |
| Temperament | Semi-aggressive | Semi-aggressive |
| Min tank | 20 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.
Design the whole tank, not just the stocking
Skapelab plans a complete, buildable planted aquarium around your fish — a hand-illustrated layout, the exact plants and hardscape, a placement map, and a full equipment and shopping list. Free.
Design a tank with Thai Devil Crab, Opaline Gourami →Everything compatible with Thai Devil Crab · …with Opaline Gourami