Spotted-tail Knifefish
NameSpotted-tail Knifefish
Scientific NameApteronotus caudimaculosus
Common NamesSpotted-tail Knifefish, Tail-spot Knifefish
FamilyApteronotidae
OriginSouth America, Amazon Basin
Temperamentsemi-aggressive
Dietcarnivore
Care Levelintermediate
Minimum Tank Size (Gallons)75
Max Size (Inches)12
Water TypeFreshwater
Temperature Range (°F)72-82
pH Range6.0-7.5
Compatible SpeciesLarger Tetras, Medium to Large Gouramis, Angelfish, Discus, Corydoras, Loricariids
Description
The Spotted-tail Knifefish is a nocturnal, South American species known for its elongated, knife-like body and a unique spotted pattern on its caudal peduncle and tail. It uses a weak electrical field for navigation and hunting. This species thrives in a well-established aquarium with ample hiding spots and clean, soft, acidic water.
