Fish comparison
Ember Tetra vs Serpae Tetra
How the Ember Tetra and Serpae Tetra compare on care, size, water and temperament, and which fish suits your tank.
By Mike ElmiraUpdated
TL;DR, Ember Tetra vs Serpae Tetra
The Ember Tetra and the Serpae Tetra are close cousins, both in the Hyphessobrycon group, so at a glance they ask for a lot of the same things. Both are happy somewhere around 23 to 27 °C and pH 5.5 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 Ember Tetra needs less room to feel settled; give the Serpae Tetra the nod when you have the litres to spare.
Group compatibility overview
Excellent fit
Every key parameter overlaps and no major conflicts surfaced.
4 notes
Temperature
- Ember Tetra23–29 °C
- Serpae Tetra22–27 °C
pH
- Ember Tetra5.5–7
- Serpae Tetra5.5–7.5
Hardness
- Ember Tetra1–10 dGH
- Serpae Tetra2–15 dGH
What to plan for
- Ember Tetra schools, stock at least 8You've planned for 1 ember tetra. Ember Tetra 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.
- Serpae Tetra schools, stock at least 8You've planned for 1 serpae tetra. Serpae Tetra 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.
- 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.
- 100% 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 |  FishEmber TetraHyphessobrycon amandae |  FishSerpae TetraHyphessobrycon eques |
|---|---|---|
| Category | Fish | Fish |
| Origin | Rio das Mortes basin, Brazil | Amazon and Paraguay basins |
| Family | Characidae | Characidae |
| Temperature | 23–29 °C | 22–27 °C |
| pH | 5.5–7.0 | 5.5–7.5 |
| Hardness (dGH) | 1–10 | 2–15 |
| Flow rate | Low | Low to Medium |
| Min tank | 40 L | 90 L |
| Adult size | 2 cm | 4–5 cm |
| Difficulty | 2 / 5 | 2 / 5 |
| Lifespan | 2–4 yrs | 5–7 yrs |
| Diet | Omnivore | Omnivore |
| Water column | Mid | Mid |
| Schooling | Yes | Yes |
| Plant safe | Yes | Yes |
| Shrimp safe | Yes (adults safe with adult shrimp) | No (adults pick at shrimplets) |
Frequently asked questions
Direct answers to the questions search engines and AI assistants surface most often about this species.
Can you keep Ember Tetra and Serpae Tetra together?
Yes. Their temperature and pH ranges overlap around 23 to 27 °C and pH 5.5 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 Ember Tetra or the Serpae 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 Ember Tetra and Serpae Tetra need the same water?
Close to it. Aim for 23 to 27 °C and pH 5.5 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 Ember Tetra and the Serpae Tetra?
Temperament is the big one. The Ember Tetra is peaceful and the Serpae Tetra is semi-aggressive, which changes who you can house them with.