Fish comparison
Pearl Danio vs Zebra Danio
How the Pearl Danio and Zebra Danio compare on care, size, water and temperament, and which fish suits your tank.
By Mike ElmiraUpdated
TL;DR, Pearl Danio vs Zebra Danio
The Pearl Danio and the Zebra Danio are close cousins, both in the Danio group, so at a glance they ask for a lot of the same things. Both are happy somewhere around 20 to 26 °C and pH 6.5 to 7.5, 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 Zebra Danio needs less room to feel settled; give the Pearl Danio 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
- Pearl Danio20–26 °C
- Zebra Danio18–26 °C
pH
- Pearl Danio6–7.5
- Zebra Danio6.5–8
Hardness
- Pearl Danio2–15 dGH
- Zebra Danio5–20 dGH
What to plan for
- Pearl Danio schools, stock at least 8You've planned for 1 pearl danio. Pearl Danio need a group of at least 8 to feel safe and shoal naturally, below that they're stressed and lose colour. Dial up the count, or remove the species.
- Zebra Danio schools, stock at least 6You've planned for 1 zebra danio. Zebra 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.
- No bottom teamNo bottom-dwelling fish or shrimp. A small group of corydoras or a shrimp colony picks up leftover food and keeps detritus in check.
Full attributes
Every parameter, side by side| Parameter |  FishPearl DanioDanio albolineatus |  FishZebra DanioDanio rerio |
|---|---|---|
| Category | Fish | Fish |
| Origin | Myanmar, Thailand, Sumatra | South Asia (India, Bangladesh, Pakistan) |
| Family | Cyprinidae | Cyprinidae |
| Temperature | 20–26 °C | 18–26 °C |
| pH | 6.0–7.5 | 6.5–8.0 |
| Hardness (dGH) | 2–15 | 5–20 |
| Flow rate | Medium | Medium |
| Min tank | 75 L | 60 L (long, not tall) |
| Adult size | 5–6 cm | 4–6 cm |
| Difficulty | 1 / 5 | 1 / 5 |
| Lifespan | 5–7 yrs | 3–5 yrs |
| Diet | Omnivore | Omnivore |
| Water column | Mid to top | Mid to Top |
| Schooling | Yes | Yes |
| Plant safe | Yes | Yes |
| Shrimp safe | Yes (with adults) | Adults only (fast, bold) |
Frequently asked questions
Direct answers to the questions search engines and AI assistants surface most often about this species.
Can you keep Pearl Danio and Zebra Danio together?
Yes. Their temperature and pH ranges overlap around 20 to 26 °C and pH 6.5 to 7.5, 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 Pearl Danio or the Zebra Danio?
They sit at the same care level, both very easy, so neither is the obvious beginner pick. The decision is really about the look you're after.
Do Pearl Danio and Zebra Danio need the same water?
Close to it. Aim for 20 to 26 °C and pH 6.5 to 7.5 and you're in the shared sweet spot for both. Full ranges are in the table above.
What's the main difference between the Pearl Danio and the Zebra Danio?
Space. The Pearl Danio wants about 75 litres minimum and the Zebra Danio around 60, so tank size can settle it.