Fish comparison
Bronze Corydoras vs False Julii Cory
How the Bronze Corydoras and False Julii Cory compare on care, size, water and temperament, and which fish suits your tank.
By Mike ElmiraUpdated
TL;DR, Bronze Corydoras vs False Julii Cory
The Bronze Corydoras and the False Julii Cory are close cousins, both in the Corydoras group, so at a glance they ask for a lot of the same things. Both are happy somewhere around 22 to 26 °C and pH 6 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 False Julii Cory needs less room to feel settled; give the Bronze Corydoras the nod when you have the litres to spare.
Group compatibility overview
Good fit
Workable as-is, only minor advisories to plan around.
1 warning · 2 notes
Temperature
- Bronze Corydoras20–26 °C
- False Julii Cory22–26 °C
pH
- Bronze Corydoras6–7.5
- False Julii Cory6–7.5
Hardness
- Bronze Corydoras3–15 dGH
- False Julii Cory2–15 dGH
What to plan for
- Bronze Corydoras schools, stock at least 6You've planned for 1 bronze corydoras. Bronze Corydoras 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.
- False Julii Cory schools, stock at least 6You've planned for 1 false julii cory. False Julii Cory 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.
- All fish are bottom-dwellersTop and middle of the tank will look empty, and surface food drops uneaten. Add a mid or top species (rasboras, danios, hatchetfish) to use the whole water column.
Full attributes
Every parameter, side by side| Parameter |  FishBronze CorydorasCorydoras aeneus |  FishFalse Julii CoryCorydoras trilineatus |
|---|---|---|
| Category | Fish | Fish |
| Origin | South America (Colombia, Trinidad to Argentina) | Upper Amazon |
| Family | Callichthyidae | Callichthyidae |
| Temperature | 20–26 °C | 22–26 °C |
| pH | 6.0–7.5 | 6.0–7.5 |
| Hardness (dGH) | 3–15 | 2–15 |
| Flow rate | Low to Medium | Medium |
| Min tank | 80 L | 75 L |
| Adult size | 6–7 cm | 5–6 cm |
| Difficulty | 1 / 5 | 1 / 5 |
| Lifespan | 5–10 yrs | 5–7 yrs |
| Diet | Omnivore (sinking food) | Omnivore |
| Water column | Bottom | Bottom |
| Schooling | Yes | Yes |
| Plant safe | Yes | Yes |
| Shrimp safe | Yes | 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 Bronze Corydoras and False Julii Cory together?
Yes. Their temperature and pH ranges overlap around 22 to 26 °C and pH 6 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 Bronze Corydoras or the False Julii Cory?
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 Bronze Corydoras and False Julii Cory need the same water?
Close to it. Aim for 22 to 26 °C and pH 6 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 Bronze Corydoras and the False Julii Cory?
Space. The Bronze Corydoras wants about 80 litres minimum and the False Julii Cory around 75, so tank size can settle it.