False Tiger Knifefish (Gymnotus javari)


A beautifully marked slender knifefish found throughout much of the Western Amazon and its tributaries, the False Tiger Knifefish or Javari Knifefish is a relatively peaceful species found in acidic, slow-moving shallows. Like most species in the genus Gymnotus, they are secretive, cryptic fish which prefer plenty of cover in the form of driftwood, caves, and leaf litter in the aquarium. They are nocturnal but will learn to come out when fed.

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Quantity5 - 910 - 1920 - 4950 +


False Tiger Knifefish (Gymnotus javari)

Origin: Wild Peru
Locale: Rio Ucayali
Diet: micropredator, feeding on insect larvae and small crustaceans in the wild. Will usually accept frozen foods in the aquarium.
Adult Size: 11″
Recommended Tank Size: 55 gallon
Compatibility: Generally peaceful but can be aggressive towards other knifefish.

Preferred Water Parameters
pH:                          6.5 – 7.4
Temp:                     76-82F
Ammonia:              0ppm
Nitrite:                    0ppm
Nitrate:                  <30ppm