Bolivian Ram and Pygmy Corydoras Compatibility Overview
Bolivian Ram and Pygmy Corydoras can potentially coexist, but the combination requires careful attention. Bolivian Ram is semi and Pygmy Corydoras is peaceful, so give them room and cover rather than assuming they will ignore each other. A larger tank (minimum 55 gallons), dense planting, and close monitoring are essential.
| Factor | Bolivian Ram | Pygmy Corydoras | Verdict |
|---|---|---|---|
| Temperature | 75โ82ยฐF | 72โ79ยฐF | โ 75โ79ยฐF |
| pH Range | 6.0โ7.5 | 6.0โ7.5 | โ 6.0โ7.5 |
| Temperament | semi | peaceful | โ ๏ธ Monitor |
| Adult Size | 3.1 in | 1 in | โ ๏ธ 3.1ร difference |
| Min. Group | 2+ | 6+ | See below |
| Min. Tank Size | 55 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Bolivian Ram โ Mikrogeophagus altispinosus
The Bolivian Ram is a popular freshwater fish known for its vibrant colors and peaceful nature. They are well-suited for community tanks with other peaceful species. These fish are relatively easy to care for, making them a great choice for beginners. They require a well-maintained tank with a moderate water flow and plenty of space for swimming.
โ Full Bolivian Ram care guide
Pygmy Corydoras โ Corydoras pygmaeus
Tiny armoured catfish that school in open water as well as on the substrate. Peaceful with all non-aggressive species.
Frequently Asked Questions
Can Bolivian Ram live with Pygmy Corydoras?
With significant caution and a larger tank. Bolivian Ram and Pygmy Corydoras can potentially coexist, but the combination requires careful attention. Bolivian Ram is semi and Pygmy Corydoras is peaceful, so give them room and cover rather than assuming they will ignore each other. A larger tank (minimum 55 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Bolivian Ram and Pygmy Corydoras together?
A minimum of 55 gallons is recommended for keeping Bolivian Ram and Pygmy Corydoras together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Bolivian Ram and Pygmy Corydoras?
75โ79ยฐF โ inside Bolivian Ram's 75โ82ยฐF and Pygmy Corydoras's 72โ79ยฐF.
Is a Bolivian Ram aggressive toward a Pygmy Corydoras?
Bolivian Ram is semi and Pygmy Corydoras is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Bolivian Ram and Pygmy Corydoras
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 55 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 75 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 125 gal | Best when keeping larger schools or reducing territorial pressure. |