Can Black Neon Tetra live with Discus?
Not recommended
Why
- Discus’s mouth is big enough to swallow Black Neon Tetra (only 1.5" long) — it will be eaten.
- Only a narrow temperature overlap — keep both around 82°F.
Side-by-side
| Black Neon Tetra | Discus | |
|---|---|---|
| Temperature | 72–82°F | 82–88°F |
| pH | 5.5–7.5 | 5.5–7 |
| Hardness (GH) | 2–12 dGH | 1–8 dGH |
| Adult size | 1.5" | 8" |
| Temperament | Peaceful | Peaceful |
| Min tank | 15 gal | 55 gal |
Together, plan on at least 55 gallons.
Compatible alternatives
Instead of Black Neon Tetra (to keep Discus):
- 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 Discus (to keep Black Neon Tetra):
- Brilliant Rasbora — 4", peaceful buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Clown Rasbora — 4", peaceful buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Altum Angelfish — 7", 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
- Discus: 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 Discus