Grey Knifefish
NameGrey Knifefish
Scientific NameKyphosus cinerascens
Common NamesAsh-colored Sea Chub, Blue Sea Chub, Grey Sea Chub, Highfin Rudderfish
FamilyKyphosidae
OriginIndo-Pacific
Temperamentpeaceful
Dietomnivore
Care Levelintermediate
Minimum Tank Size (Gallons)250
Max Size (Inches)20
Water TypeSaltwater
Temperature Range (°F)72-78
pH Range8.1-8.4
Compatible SpeciesOther large tangs, Large angelfish, Non-aggressive triggerfish, Groupers, Snappers, Other robust marine fish
Description
The Ash-colored Sea Chub, often found in large schools, is a robust marine fish native to the Indo-Pacific. Characterized by its deep, compressed body and dark grey to bluish coloration, it primarily grazes on algae. Due to its large adult size and schooling nature, it requires a spacious saltwater aquarium.
