Cape Knifejaw
NameCape Knifejaw
Scientific NameOplegnathus conwayi
Common NamesCape Knifejaw, Knifejaw
FamilyOplegnathidae
OriginSouth Africa, Temperate Atlantic Ocean
Temperamentsemi-aggressive
Dietcarnivore
Care Leveladvanced
Minimum Tank Size (Gallons)180
Max Size (Inches)35
Water TypeSaltwater
Temperature Range (°F)64-75
pH Range8.1-8.4
Compatible SpeciesLarge Angelfish, Robust Tangs, Triggerfish (with caution), Groupers
Description
The Cape knifejaw is a robust, deep-bodied marine fish known for its fused, beak-like teeth. Endemic to temperate South African coastal waters, it inhabits rocky reefs and can grow quite large. This species requires a spacious, well-maintained saltwater aquarium and careful tankmate selection.
