Japanese eel — a Anguillidae from E China to Japan, peaceful; keep with similar-sized calm tankmates. Reaches 52.5–77 cm; keep in a group of 4–6 for natural behaviour. 20–26 °C.
Care parameters
Water temperature
20–26 °C
pH
6.5–7.5
GH hardness
5–15 dGH
Adult length
52.5–77 cm
Minimum tank
500 L
Water layer
Middle of the water column
Difficulty
Moderate
Temperament
Peaceful; keep with similar-sized calm tankmates
Origin
E China to Japan
Species overview
Anguilla japonica, a member of the family Anguillidae, is native to E China to Japan. Its calm temperament and broad diet make it one of the more forgiving residents of a community tank. It swims in mid-water. Adults reach 52.5–77 cm. Keep in a group of 4–6 for natural behaviour. Stable water, regular partial changes and a varied diet cover nearly everything it needs. Maintain 20–26 °C at pH 6.5–7.5. Undemanding once its core needs are met.
Native biotope
Habitat
Warm freshwater streams and lakes
Flow
Still to gentle current
Dissolved O₂
Moderate oxygen levels
Aquascape & hardware
Substrate
Fine sand and gravel
Hardscape
Driftwood and smooth stones
Plants
Hardy common aquarium plants
Temperament, diet & tankmates
Schooling
Keep in a group of 4–6 for natural behaviour
Diet
Omnivore; prepared foods with regular variety
Recommended tankmates
Robust schooling cyprinids — Add activity without conflict