Knife Livebearer
NameKnife Livebearer
Scientific NameAlfaro cultratus
Common NamesKnife Livebearer, Knife-edged Livebearer, Alfaro Livebearer
FamilyPoeciliidae
OriginCentral America, Costa Rica, Nicaragua, Panama
Temperamentsemi-aggressive
Dietomnivore
Care Levelintermediate
Minimum Tank Size (Gallons)20
Max Size (Inches)3.5
Water TypeFreshwater
Temperature Range (°F)72-82
pH Range7.0-8.0
Compatible SpeciesLarger Tetras, Rainbowfish, Larger Rasboras, Kribensis Cichlids, Other robust livebearers
Description
The Knife Livebearer is a slender, active livebearer known for its distinctive 'knife-edged' dorsal profile. Males can be territorial and nippy, especially towards other males or fish with long fins. They are predatory and will eat fry and very small fish.
