Can Rummynose Tetra live with Thai Freshwater Crab?
Caution — with care
Why
- Thai Freshwater Crab can grab Rummynose Tetra while it sleeps — only fast mid/top-water fish are reasonably safe.
- Only a narrow pH overlap — keep both around 7–7.
- Only a narrow water hardness overlap — keep both around 6–8 dGH.
Sweet spot: both do well at 75–82°F and pH 7–7 — aim there.
Side-by-side
| Rummynose Tetra | Thai Freshwater Crab | |
|---|---|---|
| Temperature | 75–84°F | 72–82°F |
| pH | 5.5–7 | 7–8 |
| Hardness (GH) | 2–8 dGH | 6–15 dGH |
| Adult size | 2" | 2.5" |
| Temperament | Peaceful | Semi-aggressive |
| Min tank | 20 gal | 15 gal |
Together, plan on at least 20 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: GH remineraliser
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 Rummynose Tetra, Thai Freshwater Crab →Everything compatible with Rummynose Tetra · …with Thai Freshwater Crab