Can Red Claw Crab live with Siamese Algae Eater?
Caution — with care
Why
- Red Claw Crab can grab Siamese Algae Eater while it sleeps — only fast mid/top-water fish are reasonably safe.
- No overlapping water hardness: Red Claw Crab wants 15–25 dGH but Siamese Algae Eater wants 6–7.5 dGH.
- Only a narrow pH overlap — keep both around 7.5–7.6.
Sweet spot: both do well at 75–79°F and pH 7.5–7.6 — aim there.
Side-by-side
| Red Claw Crab | Siamese Algae Eater | |
|---|---|---|
| Temperature | 75–82°F | 72–79°F |
| pH | 7.5–8.5 | 6.5–7.6 |
| Hardness (GH) | 15–25 dGH | 6–7.5 dGH |
| Adult size | 2.5" | 6" |
| Temperament | Semi-aggressive | Peaceful |
| Min tank | 15 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: 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 Red Claw Crab, Siamese Algae Eater →Everything compatible with Red Claw Crab · …with Siamese Algae Eater