African knife-fish
the Xenomystus nigri lives in the middle water-regions of your aquarium. The basin-length of the aquarium should amount to at least 90 cm for these fi...
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American knife-fish
the Steatogenes elegans lives in the low water-regions of your aquarium. The basin-length of the aquarium should amount to at least 80 cm for these fi...
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Asian pennant-knife-fish
the Notopterus notopterus lives in the low water-regions of your aquarium. The basin-length of the aquarium should amount to at least 100 cm for these...
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green knife-fish
the Eigenmannia virescens lives in the low water-regions of your aquarium. The basin-length of the aquarium should amount to at least 120 cm for these...
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white-forehead knife-fish
the Apteronotus albifrons lives in the middle water-regions of your aquarium. The basin-length of the aquarium should amount to at least 100 cm for th...
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