Blackspot Threadfin
NameBlackspot Threadfin
Scientific NamePolydactylus oligodon
Common NamesBlackspot Threadfin, Smalltooth Threadfin
FamilyPolynemidae
OriginIndo-West Pacific, Southeast Asia, New Guinea, Northern Australia
Temperamentsemi-aggressive
Dietcarnivore
Care Levelexpert
Minimum Tank Size (Gallons)1000
Max Size (Inches)23.6
Water TypeBrackish
Temperature Range (°F)75-82
pH Range7.5-8.5
Compatible SpeciesBest kept alone or with very large, robust, non-aggressive brackish/marine fish
Description
The Blackspot Threadfin (*Polydactylus oligodon*) is a large, predatory fish native to the Indo-West Pacific, inhabiting coastal waters, estuaries, and sometimes freshwater. It is characterized by its silvery body and distinctive free pectoral fin rays used for foraging. This species is not commonly kept in home aquariums due to its significant size and specialized care requirements.
