The Sternopygus castroi lives in the benthopelagic, freshwater environment.
Triques ML (2000) Sternopygus castroi, a new species of Neotropical freshwater electric fish, with new synapomorphies to the genus (Sternopygidae : Gymnotiformes : Teleostei). Studies on Neotropical Fauna and Environment 35:19-26. More