Fire Eel and Glass Catfish Compatibility Overview
Fire Eel and Glass Catfish 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 | Glass Catfish | Verdict |
|---|---|---|---|
| Temperature | 75โ82ยฐF | 68โ79ยฐF | โ 75โ79ยฐF |
| pH Range | 6.0โ7.0 | 4.0โ7.0 | โ 6.0โ7.0 |
| Temperament | semi | peaceful | โ ๏ธ Monitor |
| Adult Size | 39.4 in | 2.6 in | โ 15ร 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.
Glass Catfish โ Kryptopterus vitreolus
The Glass Catfish, Kryptopterus vitreolus, is a popular freshwater aquarium fish known for its unique, translucent body and iridescent scales. It is a peaceful species that thrives in groups and is suitable for beginners due to its hardy nature. These catfish are bottom-dwellers and require a well-decorated tank with plenty of swimming space.
Frequently Asked Questions
Can Fire Eel live with Glass Catfish?
Generally not recommended. Fire Eel and Glass Catfish 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 Glass Catfish together?
A minimum of 100 gallons is recommended for keeping Fire Eel and Glass Catfish together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Fire Eel and Glass Catfish?
75โ79ยฐF โ inside Fire Eel's 75โ82ยฐF and Glass Catfish's 68โ79ยฐF.
Is a Fire Eel aggressive toward a Glass Catfish?
The adult size gap creates a meaningful predation risk.
Related Compatibility Guides
Tank Size for Fire Eel and Glass Catfish
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. |