<Table> <Tr> <Th_colspan="2"> Black ghost knifefish </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th_colspan="2"> Scientific classification </Th> </Tr> <Tr> <Td> Kingdom: </Td> <Td> Animalia </Td> </Tr> <Tr> <Td> Phylum: </Td> <Td> Chordata </Td> </Tr> <Tr> <Td> Class: </Td> <Td> Actinopterygii </Td> </Tr> <Tr> <Td> Order: </Td> <Td> Gymnotiformes </Td> </Tr> <Tr> <Td> Family: </Td> <Td> Apteronotidae </Td> </Tr> <Tr> <Td> Genus: </Td> <Td> Apteronotus </Td> </Tr> <Tr> <Td> Species: </Td> <Td> A. albifrons </Td> </Tr> <Tr> <Th_colspan="2"> Binomial name </Th> </Tr> <Tr> <Td_colspan="2"> Apteronotus albifrons (Linnaeus, 1766) </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Black ghost knifefish </Th> </Tr> <Tr> <Th_colspan="2"> Scientific classification </Th> </Tr> <Tr> <Td> Kingdom: </Td> <Td> Animalia </Td> </Tr>

How long do black ghost knife fish live