Black Ghost (Knife Fish)

The Black Ghost Knifefish (Apteronotus albifrons) is one of the most distinctive freshwater fish in the hobby, instantly recognizable for its jet-black body, contrasting white bands, and ribbon-like fin that allows it to glide gracefully through the water. Sometimes referred to simply as the Ghost Knife Fish, this South American species is intelligent, nocturnal, and can grow into an impressive centerpiece for large aquariums. Highly prized for both its elegant movement and unusual behavior, it remains a favorite among aquarists worldwide.

Also Known As: Black Ghost Knife, Ghost Knifefish, BGK, Electric Black Ghost, South American Ghost Knife.

Fish Size Guide:

The 'Maximum Size' outlined below is the length this fish can reach as a full grown adult. For the actual size please use the select menu above.

Discus.ae prefers younger stock for their better ability to adapt to new water parameters and higher tolerance against transport. On rare occasions you may receive larger specimens when small fish are unavailable, however the smallest should be expected unless the size is noted as "Large" or "Adult".