Can Altum Angelfish live with Black Neon Tetra?
Caution — with care
Why
- Altum Angelfish may eat Black Neon Tetra; add only full-grown adults, because juveniles and fry will be picked off.
- Only a narrow temperature overlap — keep both around 82°F.
Sweet spot: both do well at 82–82°F and pH 5.5–6.5 — aim there.
Side-by-side
| Altum Angelfish | Black Neon Tetra | |
|---|---|---|
| Temperature | 82–88°F | 72–82°F |
| pH | 4.5–6.5 | 5.5–7.5 |
| Hardness (GH) | 1–5 dGH | 2–12 dGH |
| Adult size | 7" | 1.5" |
| Temperament | Peaceful | Peaceful |
| Min tank | 75 gal | 15 gal |
Together, plan on at least 75 gallons.
How to make it work
- Add only full-grown adults — never juveniles, which will be eaten.
- Target the overlapping water-parameter range and acclimate slowly.
Sort it with: An adjustable heater → Chewy
Where to buy
- Altum Angelfish: buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Black Neon Tetra: 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 Altum Angelfish · …with Black Neon Tetra