Can Dwarf Emerald Rasbora live with Yucatan Molly?
Caution — with care
Why
- Very different sizes (Yucatan Molly 6" vs Dwarf Emerald Rasbora 1") — 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 15–15 dGH.
Sweet spot: both do well at 72–78°F and pH 7.5–8 — aim there.
Side-by-side
| Dwarf Emerald Rasbora | Yucatan Molly | |
|---|---|---|
| Temperature | 68–78°F | 72–82°F |
| pH | 7–8 | 7.5–8.5 |
| Hardness (GH) | 5–15 dGH | 15–30 dGH |
| Adult size | 1" | 6" |
| Temperament | Peaceful | Peaceful |
| Min tank | 10 gal | 40 gal |
Together, plan on at least 40 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 Dwarf Emerald Rasbora, Yucatan Molly →Everything compatible with Dwarf Emerald Rasbora · …with Yucatan Molly