Can Pygmy Rasbora live with Siamese Algae Eater?
Caution — with care
Why
- Very different sizes (Siamese Algae Eater 6" vs Pygmy Rasbora 0.8") — these two need different tanks, and the smaller fish will be out-competed at feeding time.
- Only a narrow water hardness overlap — keep both around 6–7.5 dGH.
Sweet spot: both do well at 75–79°F and pH 6.5–7 — aim there.
Side-by-side
| Pygmy Rasbora | Siamese Algae Eater | |
|---|---|---|
| Temperature | 75–82°F | 72–79°F |
| pH | 5–7 | 6.5–7.6 |
| Hardness (GH) | 1–8 dGH | 6–7.5 dGH |
| Adult size | 0.8" | 6" |
| Temperament | Peaceful | Peaceful |
| Min tank | 5 gal | 30 gal |
Together, plan on at least 30 gallons.
How to make it work
- Target the overlapping water-parameter range and acclimate slowly.
Sort it with: A larger tank · GH remineraliser
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Design a tank with Pygmy Rasbora, Siamese Algae Eater →Everything compatible with Pygmy Rasbora · …with Siamese Algae Eater