Can Wild Betta Splendens live with Sailfin Molly?
Not recommended
Why
- Wild Betta Splendens is aggressive and will attack the peaceful Sailfin Molly.
- Only a narrow pH overlap — keep both around 7.5–7.6.
- Sailfin Molly is large enough to threaten a small Wild Betta Splendens — usually fine once both are adult, but watch new additions.
- No overlapping water hardness: Wild Betta Splendens wants 6–7.5 dGH but Sailfin Molly wants 12–30 dGH.
Side-by-side
| Wild Betta Splendens | Sailfin Molly | |
|---|---|---|
| Temperature | 75–86°F | 68–82°F |
| pH | 6.5–7.6 | 7.5–8.5 |
| Hardness (GH) | 6–7.5 dGH | 12–30 dGH |
| Adult size | 2.5" | 5" |
| Temperament | Aggressive | Peaceful |
| Min tank | 10 gal | 30 gal |
Together, plan on at least 30 gallons.
Compatible alternatives
Instead of Wild Betta Splendens (to keep Sailfin Molly):
- Variatus Platy — 2.75", peaceful buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Black Molly — 4", peaceful buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Molly — 4", peaceful buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
Instead of Sailfin Molly (to keep Wild Betta Splendens):
- Betta (Siamese Fighting Fish) — 2.5", semi-aggressive buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Wild Betta Splendens — 2.5", aggressive buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Wild-Type Betta — 2.5", semi-aggressive buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
Where to buy
- Wild Betta Splendens: buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Sailfin Molly: 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 Wild Betta Splendens · …with Sailfin Molly