Natal Knifejaw
NameNatal Knifejaw
Scientific NameOplegnathus robinsoni
Common NamesNatal Knifejaw, Yellowbelly Knifejaw
FamilyOplegnathidae
OriginWestern Indian Ocean, South Africa, Mozambique, Madagascar
Temperamentsemi-aggressive
Dietcarnivore
Care Leveladvanced
Minimum Tank Size (Gallons)240
Max Size (Inches)23.6
Water TypeSaltwater
Temperature Range (°F)70-78
pH Range8.1-8.4
Compatible SpeciesLarge Groupers, Large Angelfish, Robust Triggerfish, Other large predatory fish
Description
The Natal Knifejaw (*Oplegnathus robinsoni*) is a distinctive marine fish native to the Western Indian Ocean, characterized by its robust body and fused, beak-like teeth. Juveniles are often mottled, while adults typically display a dark body with a yellowish upper half and small dark spots. This species is a predatory carnivore, using its strong jaws to crush hard-shelled invertebrates.
