Black Ghost Knifefish Tropical Fish Information

Apteronotus albifrons
Black Ghost Knifefish
Behaviour Normally peaceful but individuals may be aggressive, timid
Typical size 30cm
Max size 50cm
Tank Area Middle, all
Min Tank Size 120cm
Temp Min: 23℃ Max: 28℃
Feeding Meaty, sinking, live, frozen foods, May take dried foods
pH Range 5.5-8.5
Hardness vs,s,m,h,vh
Black Ghost Knifefish Apteronotus albifrons
  • Black Ghost Knifefish Apteronotus albifrons - thumbnail

Black Ghost Knifefish (Apteronotus albifrons)

Black Ghost Knifefish Tropical Fish Learn all about the Black Ghost Knifefish's feeding habits and food types, its behaviour, its origins, its natural habitats, is it male or female, breeding advice and information, suitable tank mates, its sizing and growth range, minimum tank size, water PH and more. Use our fish community creator tool to plan your tank set up and ensure that the Black Ghost Knifefish is the right fish for your aquarium.

This stunning fish is a wonder the first time it is seen, and many aquarists have mistakenly bought the fish on impulse, not realising it can grow up to 50cm (normally 30-40 in aquaria) In most cases the fish is peaceful and somewhat shy, although specimens will become very trusting with their owners. Aggression may occur between individuals so they are best kept singly. Tankmates should be large, peaceful, and not overly active. In common with other ghost knifefish, water quality must be kept in top condition with good filtration, and the aquarium should have plenty of hiding spots. May be sensitive to some chemicals or treatments. The Black Ghost Knifefish is a great display fish for large aquariums.

This fish is excluded from the Compatibility Checker as it is unsuitable for community aquariums or may require expert care.

Black Ghost Knifefish Facts

Family Apteronotidae (Ghost knifefishes) | Synonyms Gymnotus albifrons, Sternarchus albifrons, S. lacepedii, S. maximilliani, Apteronotus passan | Other names Apteronotid Eel, Black Ghost | Origin South America; Venezuela, Paraguay, Brazil, Peru, Guyana | Natural Water Conditions pH 6-8, very soft to hard | Natural Habitat Fast flowing waters, normally with sandy substrates



Black Ghost Knifefish Help and Advice

If you have a question about keeping Black Ghost Knifefish's then please use our Black Ghost Knifefish help forum. Join 100's of other fish enthusiasts with 1000's of years experience between them caring for and keeping fish like these.




Check tank mates for the Black Ghost Knifefish fish species

You are in the thinkfish community creator for the Black Ghost Knifefish fish species, you can learn all about how the tool works in assessing fish tank mate compatibility at the link provided or use the tool tips provided to guide you. Create a test fish community that includes the Black Ghost Knifefish species and any other types of fish or crustacean you'd like to introduce - You can assess the best companions, tank size suitability, stocking levels based on filter type and volume and possible negative interactions and warnings as you build up your aquarium.

Please do check your water type for compatibility with your fish, which can be found on the Black Ghost Knifefish information box above and your local water company providers website. Don't waste your money and endanger your fish!
Tank Details
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