Can Pygmy Rasbora live with Yucatan Molly?
Caution — with care
Why
- No overlapping pH: Pygmy Rasbora wants 5–7 but Yucatan Molly wants 7.5–8.5.
- No overlapping water hardness: Pygmy Rasbora wants 1–8 dGH but Yucatan Molly wants 15–30 dGH.
- Very different sizes (Yucatan Molly 6" vs Pygmy Rasbora 0.8") — these two need different tanks, and the smaller fish will be out-competed at feeding time.
Side-by-side
| Pygmy Rasbora | Yucatan Molly | |
|---|---|---|
| Temperature | 75–82°F | 72–82°F |
| pH | 5–7 | 7.5–8.5 |
| Hardness (GH) | 1–8 dGH | 15–30 dGH |
| Adult size | 0.8" | 6" |
| Temperament | Peaceful | Peaceful |
| Min tank | 5 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: GH remineraliser · A larger tank
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 Pygmy Rasbora, Yucatan Molly →Everything compatible with Pygmy Rasbora · …with Yucatan Molly