Apteronotus albifrons... www.tfhmagazine.com

Apteronotus albifrons -... www.wetspottropicalfish.com...

Apteronotus albifrons... biotopeaquariumproject.com

Black Ghost Knifefish... aquaticarts.com

Black Ghost Knifefish... www.inaturalist.org

Apteronotus albifrons – Tag... tagmyfish.net

Apteronotus albifrons WHITE... www.aquariumglaser.de

Black ghost • Apteronotus... www.fishi-pedia.com

Black Ghost Knifefish... www.inaturalist.org

Black Ghost Knifefish -... aquadiction.world

Apteronotus albifrons, the... www.researchgate.net

TROP-200)U077 (2 pack)... coastgemusa.com

Aqua Exoticas - #13 Black... www.facebook.com

species of Apteronotus... www.researchgate.net

MISC - KNIFE BLACK GHOST... aquaticsunlimited.com

Knifefish (Apteronotus... www.sciencesource.com

Apteronotus albifrons WHITE... www.aquariumglaser.de

Multimedia Gallery - The... www.nsf.gov

Black Ghost Knifefish... www.inaturalist.org

Knifefish (Apteronotus... www.sciencephoto.com