King Threadfin
NameKing Threadfin
Scientific NamePolydactylus sheridani
Common NamesKing Threadfin, Sheridan's Threadfin, Giant Threadfin
FamilyPolynemidae
OriginIndo-West Pacific, Northern Australia, Papua New Guinea, Persian Gulf
Temperamentaggressive
Dietcarnivore
Care Levelexpert
Minimum Tank Size (Gallons)2000
Max Size (Inches)67
Water TypeSaltwater
Temperature Range (°F)75-82
pH Range7.8-8.4
Compatible SpeciesOther very large, robust marine predators (in public aquariums)
Description
The King Threadfin is a large, predatory marine fish known for its distinctive free-standing pectoral fin rays. It inhabits coastal waters, estuaries, and sometimes ventures into freshwater. Due to its immense size, it is only suitable for very large public aquariums or specialized custom setups.
