Can Thai Freshwater Crab live with Red-Line Rasbora?
Caution — with care
Why
- Thai Freshwater Crab can grab Red-Line Rasbora 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 73–81°F and pH 7–7 — aim there.
Side-by-side
| Thai Freshwater Crab | Red-Line Rasbora | |
|---|---|---|
| Temperature | 72–82°F | 73–81°F |
| pH | 7–8 | 5–7 |
| Hardness (GH) | 6–15 dGH | 1–8 dGH |
| Adult size | 2.5" | 1.75" |
| Temperament | Semi-aggressive | Peaceful |
| Min tank | 15 gal | 15 gal |
Together, plan on at least 15 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 Thai Freshwater Crab, Red-Line Rasbora →Everything compatible with Thai Freshwater Crab · …with Red-Line Rasbora