Compatibility Overview
Pygmy Corydoras and Three Spot Gourami can potentially coexist, but the combination requires careful attention. Some combination of water parameter differences, size mismatch, or temperament issues make this pair challenging. A larger tank (minimum 40 gallons), dense planting, and close monitoring are essential.
| Factor | Pygmy Corydoras | Three Spot Gourami | Verdict |
|---|---|---|---|
| Temperature | 72–79°F | 73–81°F | ✅ 73–79°F |
| pH Range | 6.0–7.5 | 6.5–7.5 | ✅ 6.5–7.5 |
| Temperament | peaceful | aggressive | ❌ Risk |
| Adult Size | 1 in | 2.4 in | ⚠️ 2.4× difference |
| Min. Group | 6+ | 1+ | See below |
| Min. Tank Size | 40 gallons (for both species) | — | |
✅ Compatibility Positives
⚠️ Caution Points
Species Profiles
Pygmy Corydoras — Corydoras pygmaeus
Tiny armoured catfish that school in open water as well as on the substrate. Peaceful with all non-aggressive species.
→ Full Pygmy Corydoras care guide
Three Spot Gourami — Aquarium species
The Three Spot Gourami is a peaceful and attractive addition to freshwater tanks. They are known for their vibrant coloration and peaceful demeanor. With their flowing tails and distinctive body spots, they add visual interest to the aquarium. Providing a well-planted tank with hiding spots is crucial for their well-being. As a beginner-friendly fish, they a
Frequently Asked Questions
Can Pygmy Corydoras live with Three Spot Gourami?
With significant caution and a larger tank. Pygmy Corydoras and Three Spot Gourami can potentially coexist, but the combination requires careful attention. Some combination of water parameter differences, size mismatch, or temperament issues make this pair challenging. A larger tank (minimum 40 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Pygmy Corydoras and Three Spot Gourami together?
A minimum of 40 gallons is recommended for keeping Pygmy Corydoras and Three Spot Gourami together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Pygmy Corydoras and Three Spot Gourami?
73–79°F
Is a Pygmy Corydoras aggressive toward a Three Spot Gourami?
Pygmy Corydoras is peaceful and Three Spot Gourami is aggressive. No major aggression issues are expected between these species.
Related Compatibility Guides
Compatibility score breakdown
The overall score is weighted across water chemistry, behavior, adult size, swimming zone, and social needs. A score is a planning aid—not a guarantee for individual fish.
| Factor | Score |
|---|---|
| Temperature | 86/100 |
| Ph | 100/100 |
| Temperament | 30/100 |
| Adult Size | 72/100 |
| Swim Zone | 92/100 |
| Social Needs | 92/100 |
Tank size scenarios
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 40 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 55 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 90 gal | Best when keeping larger schools or reducing territorial pressure. |