Guppy and Bronze Corydoras Compatibility
Guppy and Bronze Corydoras make a good match: temperature ranges overlap at 72–80°F, water chemistry aligns, and neither presents a meaningful behavioural or size risk. Plan on at least 20 gallons. Individual fish vary — observe behaviour during introduction.
Guppy vs Bronze Corydoras at a glance
| Aspect | Guppy | Bronze Corydoras |
|---|---|---|
| Adult size | ~1.8 in | ~2.5 in |
| Minimum tank | 10 gal | 20 gal |
| Temperature | 72–82°F | 72–80°F |
| pH | 6.8–7.8 | 6–8 |
| Temperament | peaceful | peaceful |
| Swimming zone | top | bottom |
| Group size | 3+ | 6+ |
| Care level | easy | easy |
Overlap in temperature: 72–80°F. Overlap in pH: 6.8–7.8.
Why this verdict
- Temperature: Shared range of 72–80°F.
- Water parameters: Shared pH range of 6.8–7.8.
- Temperament: Both species are peaceful community fish.
- Adult size: Comparable adult sizes (~1.8" and ~2.5").
- Swimming zone: Complementary layers (top + bottom) reduce competition for space.
- Schooling: Group sizes matter: Guppy: keep at least 3; Bronze Corydoras: keep at least 6.
- Tank size: Plan for at least 20 gallons to satisfy both species.
Main risks
- Peaceful bottom-dwellers with peaceful surface/midwater fish — zones and chemistry both align.
Exceptions & caveats
Keep 6+ corys so they shoal rather than hide.
Recommended tank
Plan on 20 gallons or larger for this pair. Suitable sizes: 20 gallon High, 20 gallon Long, 29 gallon.
Group sizes: Guppy: keep at least 3; Bronze Corydoras: keep at least 6.
Sources
- FishBase — Scientific Database · Primary / scientific · https://www.fishbase.se/
- SeriouslyFish — Specialist Publication · High authority · https://www.seriouslyfish.com/
- Aquarium Forge editorial guidelines — Editorial Interpretation · Editorial interpretation
- FishBase — Scientific Database · Primary / scientific · https://www.fishbase.se/
- SeriouslyFish — Specialist Publication · High authority · https://www.seriouslyfish.com/
- Aquarium Forge editorial guidelines — Editorial Interpretation · Editorial interpretation
- Aquarium Forge editorial guidelines — Editorial Interpretation · Editorial interpretation
Compatibility verdicts are planning guidance, not guarantees — individual fish vary. Rule version 1.1 · Data reviewed: .
Frequently asked questions
Can Guppy and Bronze Corydoras live together?
Our verdict is “Good Match”. Guppy and Bronze Corydoras make a good match: temperature ranges overlap at 72–80°F, water chemistry aligns, and neither presents a meaningful behavioural or size risk. Plan on at least 20 gallons. Individual fish vary — observe behaviour during introduction.
What tank size do Guppy and Bronze Corydoras need?
Plan for at least 20 gallons so both species have their minimum space — Guppy needs 10+ gal and Bronze Corydoras needs 20+ gal. Adding length and cover reduces stress further.
What temperature do Guppy and Bronze Corydoras share?
Their comfortable ranges overlap at 72–80°F. Hold the tank near the middle of that band and avoid the extremes of either species' range.
What are the main risks keeping Guppy with Bronze Corydoras?
Peaceful bottom-dwellers with peaceful surface/midwater fish — zones and chemistry both align.
How many Guppy and Bronze Corydoras should I keep?
Guppy: keep at least 3; Bronze Corydoras: keep at least 6. Group sizes matter for shoaling fish — too few and they become stressed and nippy.
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