Fish comparison
Celestial Pearl Danio vs Neon Tetra
How the Celestial Pearl Danio and Neon Tetra compare on care, size, water and temperament, and which fish suits your tank.
By Mike ElmiraUpdated
TL;DR, Celestial Pearl Danio vs Neon Tetra
The Celestial Pearl Danio and the Neon Tetra come up together a lot when people are choosing a fish, and they are close enough to weigh side by side. Both are happy somewhere around 20 to 24 °C and pH 6.5 to 7, so a single tank can suit either one. Neither is harder than the other to keep, so the choice comes down to look and stocking rather than skill. If tank space is tight, the Celestial Pearl Danio needs less room to feel settled; give the Neon Tetra the nod when you have the litres to spare.
Group compatibility overview
Excellent fit
Every key parameter overlaps and no major conflicts surfaced.
3 notes
Temperature
- Celestial Pearl Danio20–24 °C
- Neon Tetra20–26 °C
pH
- Celestial Pearl Danio6.5–7.5
- Neon Tetra5.5–7
Hardness
- Celestial Pearl Danio2–10 dGH
- Neon Tetra1–8 dGH
What to plan for
- Celestial Pearl Danio schools, stock at least 6You've planned for 1 celestial pearl danio. Celestial Pearl Danio need a group of at least 6 to feel safe and shoal naturally, below that they're stressed and lose colour. Dial up the count, or remove the species.
- Neon Tetra schools, stock at least 10You've planned for 1 neon tetra. Neon Tetra need a group of at least 10 to feel safe and shoal naturally, below that they're stressed and lose colour. Dial up the count, or remove the species.
- 67% of your fish swim in the midHeavy concentration in a single zone. Spreading stocking across all three levels makes the tank read fuller for the same bioload.
Full attributes
Every parameter, side by side| Parameter |  FishCelestial Pearl DanioDanio margaritatus |  FishNeon TetraParacheirodon innesi |
|---|---|---|
| Category | Fish | Fish |
| Origin | Hopong area, Myanmar | Upper Amazon basin, South America |
| Family | Cyprinidae | Characidae |
| Temperature | 20–24 °C | 20–26 °C |
| pH | 6.5–7.5 | 5.5–7.0 |
| Hardness (dGH) | 2–10 | 1–8 |
| Flow rate | Low | Low to Medium |
| Min tank | 40 L | 60 L |
| Adult size | 2–2.5 cm | 3.5–4 cm |
| Difficulty | 2 / 5 | 2 / 5 |
| Lifespan | 3–5 yrs | 5–8 yrs |
| Diet | Micropredator | Omnivore |
| Water column | Mid to Bottom | Mid |
| Schooling | Yes (loose shoal) | Yes |
| Plant safe | Yes | Yes |
| Shrimp safe | Yes (adult shrimp) | Yes (with adults; may eat shrimplets) |
Frequently asked questions
Direct answers to the questions search engines and AI assistants surface most often about this species.
Can you keep Celestial Pearl Danio and Neon Tetra together?
Yes. Their temperature and pH ranges overlap around 20 to 24 °C and pH 6.5 to 7, so one set of water conditions keeps both comfortable. Match group sizes and cover the usual planted-tank basics and they share a tank fine.
Which is easier to keep, the Celestial Pearl Danio or the Neon Tetra?
They sit at the same care level, both beginner-friendly, so neither is the obvious beginner pick. The decision is really about the look you're after.
Do Celestial Pearl Danio and Neon Tetra need the same water?
Close to it. Aim for 20 to 24 °C and pH 6.5 to 7 and you're in the shared sweet spot for both. Full ranges are in the table above.
What's the main difference between the Celestial Pearl Danio and the Neon Tetra?
Space. The Celestial Pearl Danio wants about 40 litres minimum and the Neon Tetra around 60, so tank size can settle it.