Fish comparison
Neon Tetra vs Pearl Gourami
How the Neon Tetra and Pearl Gourami compare on care, size, water and temperament, and which fish suits your tank.
By Mike ElmiraUpdated
TL;DR, Neon Tetra vs Pearl Gourami
The Neon Tetra and the Pearl Gourami 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 24 to 26 °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 Neon Tetra needs less room to feel settled; give the Pearl Gourami 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
- Neon Tetra20–26 °C
- Pearl Gourami24–28 °C
pH
- Neon Tetra5.5–7
- Pearl Gourami5.5–7.5
Hardness
- Neon Tetra1–8 dGH
- Pearl Gourami2–15 dGH
What to plan for
- 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.
- 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.
- 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 |  FishNeon TetraParacheirodon innesi |  FishPearl GouramiTrichopodus leerii |
|---|---|---|
| Category | Fish | Fish |
| Origin | Upper Amazon basin, South America | Southeast Asia (Malay Peninsula, Sumatra, Borneo) |
| Family | Characidae | Osphronemidae |
| Temperature | 20–26 °C | 24–28 °C |
| pH | 5.5–7.0 | 5.5–7.5 |
| Hardness (dGH) | 1–8 | 2–15 |
| Flow rate | Low to Medium | Still to Low |
| Min tank | 60 L | 150 L |
| Adult size | 3.5–4 cm | 10–12 cm |
| Difficulty | 2 / 5 | 2 / 5 |
| Lifespan | 5–8 yrs | 4–8 yrs |
| Diet | Omnivore | Omnivore |
| Water column | Mid | Mid to Top |
| Schooling | Yes | Pair or trio |
| Plant safe | Yes | Yes |
| Shrimp safe | Yes (with adults; may eat shrimplets) | Mostly (may eat very small shrimp) |
Frequently asked questions
Direct answers to the questions search engines and AI assistants surface most often about this species.
Can you keep Neon Tetra and Pearl Gourami together?
Yes. Their temperature and pH ranges overlap around 24 to 26 °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 Neon Tetra or the Pearl Gourami?
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 Neon Tetra and Pearl Gourami need the same water?
Close to it. Aim for 24 to 26 °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 Neon Tetra and the Pearl Gourami?
Space. The Neon Tetra wants about 60 litres minimum and the Pearl Gourami around 150, so tank size can settle it.