Red Wolffish
NameRed Wolffish
Scientific NameAnablepsoides urophthalmus
Common NamesRed-finned Rivulus, Red-eyed Rivulus, Rivulus Killifish, Red Wolffish
FamilyRivulidae
OriginSouth America, Amazon Basin, Brazil, Peru, Bolivia, Guianas
Temperamentsemi-aggressive
Dietcarnivore
Care Levelintermediate
Minimum Tank Size (Gallons)10
Max Size (Inches)3
Water TypeFreshwater
Temperature Range (°F)72-79
pH Range6.0-7.0
Compatible SpeciesOther robust killifish, Larger tetras, Dwarf cichlids (e.g., Apistogramma), Corydoras catfish, Oto catfish
Description
The Red-finned Rivulus, *Anablepsoides urophthalmus*, is a small, elongated killifish characterized by its reddish fins and a prominent black spot on its caudal peduncle. Native to the Amazon basin, it is a micropredator that thrives in well-planted aquariums. While generally peaceful towards larger tankmates, it can be territorial and predatory towards very small fish.
