Can Black Neon Tetra live with Yucatan Molly?
Not recommended
Why
- Yucatan Molly’s mouth is big enough to swallow Black Neon Tetra (only 1.5" long) — it will be eaten.
- Only a narrow pH overlap — keep both around 7.5.
- No overlapping water hardness: Black Neon Tetra wants 2–12 dGH but Yucatan Molly wants 15–30 dGH.
Side-by-side
| Black Neon Tetra | Yucatan Molly | |
|---|---|---|
| Temperature | 72–82°F | 72–82°F |
| pH | 5.5–7.5 | 7.5–8.5 |
| Hardness (GH) | 2–12 dGH | 15–30 dGH |
| Adult size | 1.5" | 6" |
| Temperament | Peaceful | Peaceful |
| Min tank | 15 gal | 40 gal |
Together, plan on at least 40 gallons.
Compatible alternatives
Instead of Black Neon Tetra (to keep Yucatan Molly):
- Cardinal Tetra — 2", peaceful buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Cherry Barb — 2", peaceful buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- False Rummy Nose Tetra — 2", peaceful buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
Instead of Yucatan Molly (to keep Black Neon Tetra):
- Moonlight Gourami — 6", peaceful buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Swordtail — 5.5", peaceful buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Sailfin Molly — 5", peaceful buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
Where to buy
- Black Neon Tetra: buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Yucatan 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 Black Neon Tetra · …with Yucatan Molly