Fish comparison
Chili Rasbora vs Chocolate Gourami
How the Chili Rasbora and Chocolate Gourami compare on care, size, water and temperament, and which fish suits your tank.
By Mike ElmiraUpdated
TL;DR, Chili Rasbora vs Chocolate Gourami
The Chili Rasbora and the Chocolate 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 26 to 28 °C and pH 4 to 6.5, so a single tank can suit either one. The Chili Rasbora is the more forgiving of the two, which matters if this is an early tank, while the Chocolate Gourami rewards a bit more attention. If tank space is tight, the Chili Rasbora needs less room to feel settled; give the Chocolate Gourami 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
- Chili Rasbora24–28 °C
- Chocolate Gourami26–30 °C
pH
- Chili Rasbora4–6.5
- Chocolate Gourami4–6.5
Hardness
- Chili Rasbora1–4 dGH
- Chocolate Gourami0–5 dGH
What to plan for
- Chili Rasbora schools, stock at least 10You've planned for 1 chili rasbora. Chili Rasbora 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.
- Chocolate Gourami schools, stock at least 4You've planned for 1 chocolate gourami. Chocolate Gourami need a group of at least 4 to feel safe and shoal naturally, below that they're stressed and lose colour. Dial up the count, or remove the species.
- Demanding species presentChocolate Gourami are difficulty 4+. Stable parameters and weekly maintenance are non-negotiable.
- 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 |  FishChili RasboraBoraras brigittae |  FishChocolate GouramiSphaerichthys osphromenoides |
|---|---|---|
| Category | Fish | Fish |
| Origin | Southwestern Borneo blackwater swamps | Borneo, Sumatra, peninsular Malaysia |
| Family | Cyprinidae | Osphronemidae |
| Temperature | 24–28 °C | 26–30 °C |
| pH | 4.0–6.5 | 4.0–6.5 |
| Hardness (dGH) | 1–4 | 0–5 |
| Flow rate | Still to Low | Very low |
| Min tank | 30 L | 75 L |
| Adult size | 1.7–2 cm | 5–6 cm |
| Difficulty | 3 / 5 | 4 / 5 |
| Lifespan | 3–4 yrs | 3–5 yrs |
| Diet | Micropredator | Carnivore |
| Water column | Mid to Top | Mid to top |
| Schooling | Yes | Yes |
| Plant safe | Yes | Yes |
| Shrimp safe | Yes (adults and adult shrimp) | Yes (with adults) |
Frequently asked questions
Direct answers to the questions search engines and AI assistants surface most often about this species.
Can you keep Chili Rasbora and Chocolate Gourami together?
Yes. Their temperature and pH ranges overlap around 26 to 28 °C and pH 4 to 6.5, 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 Chili Rasbora or the Chocolate Gourami?
The Chili Rasbora is the easier of the two, closer to middle-of-the-road, while the Chocolate Gourami leans demanding.
Do Chili Rasbora and Chocolate Gourami need the same water?
Close to it. Aim for 26 to 28 °C and pH 4 to 6.5 and you're in the shared sweet spot for both. Full ranges are in the table above.
What's the main difference between the Chili Rasbora and the Chocolate Gourami?
Space. The Chili Rasbora wants about 30 litres minimum and the Chocolate Gourami around 75, so tank size can settle it.