Can Oolong Shrimp live with Yucatan Molly?
Not recommended
Why
- Yucatan Molly is 5.0× the length of Oolong Shrimp — easily mouth-sized, and anything that fits in the mouth is a predator.
- Yucatan Molly is not on the verified shrimp-safe list, so we will not recommend it over a breeding Oolong Shrimp colony. It may well be fine — it simply has not been confirmed by a source, and an unverified guess is not worth the colony.
- Almost no shared temperature: Oolong Shrimp wants 62–72°F and Yucatan Molly wants 72–82°F, so only 72°F suits both — too fine a margin to actually hold.
- No overlapping pH: Oolong Shrimp wants 5.8–6.8 but Yucatan Molly wants 7.5–8.5.
- No overlapping water hardness: Oolong Shrimp wants 0–4 dGH but Yucatan Molly wants 15–30 dGH.
Side-by-side
| Oolong Shrimp | Yucatan Molly | |
|---|---|---|
| Temperature | 62–72°F | 72–82°F |
| pH | 5.8–6.8 | 7.5–8.5 |
| Hardness (GH) | 0–4 dGH | 15–30 dGH |
| Adult size | 1.2" | 6" |
| Temperament | Peaceful | Peaceful |
| Min tank | 10 gal | 40 gal |
Together, plan on at least 40 gallons.
Compatible alternatives
Instead of Oolong Shrimp (to keep Yucatan Molly):
- Black Rose Shrimp — 1.5", peaceful buy at The Shrimp Farm · The Shrimp Farm live-arrival guarantee
- Carbon Rili Shrimp — 1.5", peaceful buy at The Shrimp Farm · The Shrimp Farm live-arrival guarantee
- Painted Fire Red Shrimp — 1.5", peaceful buy at The Shrimp Farm · The Shrimp Farm live-arrival guarantee
Instead of Yucatan Molly (to keep Oolong Shrimp):
- Swordtail — 5.5", semi-aggressive
- Sailfin Molly — 5", peaceful
- Black Molly — 4", peaceful
Design the whole tank, not just the stocking
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Design a tank with Oolong Shrimp, Yucatan Molly →Everything compatible with Oolong Shrimp · …with Yucatan Molly