Compatibility Overview
Percula Clownfish and Pygmy Corydoras are generally not recommended to be housed together. The issues listed above — whether water parameter incompatibility, predation risk, or aggression — create conditions where one or both fish are likely to suffer harm or chronic stress.
| Factor | Percula Clownfish | Pygmy Corydoras | Verdict |
|---|---|---|---|
| Temperature | 75–82°F | 72–79°F | ✅ 75–79°F |
| pH Range | 8.0–8.5 | 6.0–7.5 | ❌ No overlap |
| Temperament | semi | peaceful | ⚠️ Monitor |
| Adult Size | 3.1 in | 1 in | ⚠️ 3.1× difference |
| Min. Group | 1+ | 6+ | See below |
| Min. Tank Size | 55 gallons (for both species) | — | |
✅ Compatibility Positives
❌ Incompatibility Reasons
Species Profiles
Percula Clownfish — Aquarium species
The Percula Clownfish, also known as the False Percula, is a popular beginner fish due to its hardiness and striking coloration. These fish are best kept in a saltwater tank with a minimum size of 30 gallons and compatible tankmates. They are peaceful, non-aggressive and do well in groups with other compatible species. Regular water quality maintenance is es
→ Full Percula Clownfish care guide
Pygmy Corydoras — 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 Percula Clownfish live with Pygmy Corydoras?
Generally not recommended. Percula Clownfish and Pygmy Corydoras are generally not recommended to be housed together. The issues listed above — whether water parameter incompatibility, predation risk, or aggression — create conditions where one or both fish are likely to suffer harm or chronic stress.
What tank size do I need for Percula Clownfish and Pygmy Corydoras together?
A minimum of 55 gallons is recommended for keeping Percula Clownfish and Pygmy Corydoras together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Percula Clownfish and Pygmy Corydoras?
75–79°F
Is a Percula Clownfish aggressive toward a Pygmy Corydoras?
Percula Clownfish is semi and Pygmy Corydoras is peaceful. These animals require different water types and cannot share one aquarium.
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 | 57/100 |
| Ph | 0/100 |
| Temperament | 75/100 |
| Adult Size | 38/100 |
| 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 | 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. |