Smoothtail Nine-spined Stickleback
NameSmoothtail Nine-spined Stickleback
Scientific NamePungitius pungitius
Common NamesNine-spined Stickleback, Ten-spined Stickleback, Smoothtail Stickleback
FamilyGasterosteidae
OriginNorthern Hemisphere, North America, Europe, Asia
Temperamentsemi-aggressive
Dietcarnivore
Care Levelintermediate
Minimum Tank Size (Gallons)15
Max Size (Inches)3
Water TypeFreshwater, Brackish
Temperature Range (°F)50-70
pH Range6.5-8.0
Compatible SpeciesNone
Description
The Nine-spined Stickleback (*Pungitius pungitius*) is a small, slender fish characterized by its series of free dorsal spines. Found in cool freshwater, brackish, and coastal marine environments across the Northern Hemisphere, it is known for its intricate male nest-building and parental care. While hardy in its natural habitat, it requires specific coldwater conditions and is best kept in a species-only aquarium due to its territorial nature, especially during breeding.
