Fire Eel and Julii Cory Compatibility Overview
Fire Eel and Julii Cory are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Review the behavior and water details before deciding whether to attempt the pairing.
| Factor | Fire Eel | Julii Cory | Verdict |
|---|---|---|---|
| Temperature | 75โ82ยฐF | 68โ79ยฐF | โ 75โ79ยฐF |
| pH Range | 6.0โ7.0 | 5.5โ7.5 | โ 6.0โ7.0 |
| Temperament | semi | peaceful | โ ๏ธ Monitor |
| Adult Size | 39.4 in | 2.2 in | โ 18ร difference |
| Min. Group | 1+ | 6+ | See below |
| Min. Tank Size | 100 gallons (for both species) | โ | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
Fire Eel โ Mastacembelus erythrotaenia
The Fire Eel is a stunning, red-bottomed species that requires a spacious tank. They are peaceful bottom feeders and do best in a well-planted, mature aquarium. With a moderate activity level, they can be a great addition to a community tank, but their size and diet may be incompatible with smaller fish.
Julii Cory โ Corydoras julii
The Julii Cory is a popular, peaceful bottom-dweller that thrives in community tanks. With a lifespan of up to 5 years, they are suitable for beginners and experienced aquarists alike. These fish are known for their dark brown coloration with distinctive white spots and a slender, flat body shape.
Frequently Asked Questions
Can Fire Eel live with Julii Cory?
Generally not recommended. Fire Eel and Julii Cory are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Review the behavior and water details before deciding whether to attempt the pairing.
What tank size do I need for Fire Eel and Julii Cory together?
A minimum of 100 gallons is recommended for keeping Fire Eel and Julii Cory together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Fire Eel and Julii Cory?
75โ79ยฐF โ inside Fire Eel's 75โ82ยฐF and Julii Cory's 68โ79ยฐF.
Is a Fire Eel aggressive toward a Julii Cory?
The adult size gap creates a meaningful predation risk.
Related Compatibility Guides
Tank Size for Fire Eel and Julii Cory
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 114 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 180 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 220 gal | Best when keeping larger schools or reducing territorial pressure. |