
Clown Knifefish
Notopterus notopterus
The Clown Knifefish (Notopterus notopterus) is a tropical freshwater fish of the family Notopteridae. It lives on the bottom. It grows to 60 cm (standard length, tail fin excluded). The IUCN Red List rates it Least Concern. In the aquarium it is kept at 20–28 °C.
- Size
- 60 cmstandard length, tail fin excluded
- Temperature
- 20–28 °C
- pH
- 6.0–8.0
- Climate zone
- Tropical
In the aquarium
Temperature20–28 °C
pH6.0–8.0
Hardness2–15 °dGH
In the wild
- Water type
- Freshwater
- Climate zone
- Tropical
- Habitat
- On the bottom
- Aquarium trade
- Traded commercially
Conservation status
Classification
- OrderOsteoglossiformes
- FamilyNotopteridae
- GenusNotopterus
- SpeciesNotopterus notopterus
Quick answers
- Clown Knifefish size: how big does it get?
- It grows to 60 cm (standard length, tail fin excluded).
- Clown Knifefish water parameters: what does it need?
- Temperature 20–28 °C, pH 6.0–8.0, hardness 2–15 °dGH.
- Clown Knifefish: is it endangered?
- The IUCN Red List rates it Least Concern.
Related species
Sources
The figures on this page are compiled from the references below.





