Fire Eel and Moonlight Gourami Compatibility Overview
Fire Eel and Moonlight Gourami 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 | Moonlight Gourami | Verdict |
|---|---|---|---|
| Temperature | 75โ82ยฐF | 77โ86ยฐF | โ 77โ82ยฐF |
| pH Range | 6.0โ7.0 | 6.0โ7.5 | โ 6.0โ7.0 |
| Temperament | semi | peaceful | โ ๏ธ Monitor |
| Adult Size | 39.4 in | 5.9 in | โ 7ร difference |
| Min. Group | 1+ | 1+ | 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.
Moonlight Gourami โ Trichopodus microlepis
The Moonlight Gourami is a beautiful freshwater fish known for its silvery blue color and red eyes. It is a peaceful community fish suitable for beginners and can thrive in a well-maintained aquarium. These fish are sensitive to water quality and require a spacious tank with plenty of swimming space.
Frequently Asked Questions
Can Fire Eel live with Moonlight Gourami?
Generally not recommended. Fire Eel and Moonlight Gourami 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 Moonlight Gourami together?
A minimum of 100 gallons is recommended for keeping Fire Eel and Moonlight Gourami together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Fire Eel and Moonlight Gourami?
77โ82ยฐF โ inside Fire Eel's 75โ82ยฐF and Moonlight Gourami's 77โ86ยฐF.
Is a Fire Eel aggressive toward a Moonlight Gourami?
The adult size gap creates a meaningful predation risk.
Related Compatibility Guides
Tank Size for Fire Eel and Moonlight Gourami
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. |