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Black ghost knifefish require a medium sized tank of 110–150 litres (30–40 US gal) when smaller, though as they grow larger will require a much larger tank of around 300–340 litres (80–90 US gal). [5] A lid is needed as they have been known to jump out.
The ghost knifefishes are a family, Apteronotidae, of ray-finned fishes in the order Gymnotiformes. These fish are native to Panama and South America . [ 1 ] They inhabit a wide range of freshwater habitats, but more than half the species in the family are found deep in rivers (typically deeper than 5 m or 16 ft) where there is little or no light.
Black ghost knifefish: Apteronotus albifrons: 50 cm (19.5 in) Not to be confused with the featherback "knifefish" of the Bonytongue group (see above) 23-28C (73-82F) 6.0-8.0 Brown ghost knifefish: Apteronotus leptorhynchus: 27 cm (10.5 in) Glass knifefish: Eigenmannia virescens: 44 cm (17.5 in) Electric eel: Electrophorus electricus: 200 cm (78 ...
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The body of these fish is unusual; it is ventrolaterally flattened and elongated, giving the appearance of a knife blade. The caudal and anal fins are fused and run from beneath the gill opening to the pointed end of the body, creating a uniform, skirt-like fin. This appendage gives the animal superior control in the water, as it is able to ...
The brown ghost knifefish (Apteronotus leptorhynchus) is a species of weakly electric knifefish in the family Apteronotidae. The brown ghost knifefish is the only vertebrate proven to have negligible brain aging thus far. [1] As such, they are extensively researched as a model species for neurological and developmental studies.
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