Species profile
Freshwater Moray Eel
Gymnothorax polyuranodonFreshwater Moray Eel (Gymnothorax polyuranodon) is a solo centerpiece fish for a cycled 125+ gallon freshwater aquarium. Plan for about 30 inches as an adult, 74-82°F water, pH 7-8.2, and advanced care. Keep only one per tank, and choose tankmates with matching water needs and low aggression.
TerritorialHigh energyAdvanced care
125 galMinimum tank
30 inAdult size
1Schooling minimum
74-82°FTemperature
Water Range
- pH
- 7-8.2
- GH
- 8-20 dGH
- KH
- 5-15 dKH
Behavior
- Temperament
- Assertive
- Fin nipping
- 0/5
- Territory
- 4/5
Diet and Care
- Diet
- carnivore
- Diet difficulty
- 5/5
- Care difficulty
- 5/5
Planning Notes
Specialist setup animal; verify freshwater/brackish needs, feeding, and habitat before stocking. Predatory or specialist fish; plan for adult size, secure lids, and meaty feeding needs.
This species may need live, frozen, fresh, or otherwise specialized foods.
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