Can Least Rasbora live with Platy?
Caution — with care
Why
- Only a narrow pH overlap — keep both around 7.
- Large size gap (Least Rasbora 0.8" vs Platy 2.5") — the bigger fish may eat the smaller one as they grow.
- No overlapping water hardness: Least Rasbora wants 1–8 dGH but Platy wants 10–28 dGH.
Sweet spot: both do well at 75–82°F and pH 7–7 — aim there.
Side-by-side
| Least Rasbora | Platy | |
|---|---|---|
| Temperature | 75–82°F | 70–82°F |
| pH | 5–7 | 7–8.2 |
| Hardness (GH) | 1–8 dGH | 10–28 dGH |
| Adult size | 0.8" | 2.5" |
| Temperament | Peaceful | Peaceful |
| Min tank | 10 gal | 15 gal |
Together, plan on at least 15 gallons.
How to make it work
- Target the overlapping water-parameter range and acclimate slowly.
- Add only full-grown adults — never juveniles, which will be eaten.
Sort it with: GH remineraliser → Aquarium Co-Op
Where to buy
- Least Rasbora: buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Platy: buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
Live-animal shipping: add a heat pack below 50°F, expect weather holds above 90°F, and schedule delivery for a moderate week when someone can receive it promptly.
Build a full tank around this stocking →Everything compatible with Least Rasbora · …with Platy