Short Ninespine Stickleback Care Guide
Pungitius kaibarae · Freshwater Fish

What Short Ninespine Stickleback look like
The Short Ninespine Stickleback (Pungitius kaibarae) exhibits a diminutive, fusiform body that typically reaches a maximum adult size of approximately 5 cm (2 inches). Its most distinctive morphological feature is the presence of nine short dorsal spines, which are complemented by bony lateral plates that provide a degree of armor against predation. The overall coloration is an olive-brown, which serves as effective camouflage within its natural habitat. Males exhibit pronounced sexual dimorphism during the breeding season, developing darker, more vivid colors to attract females. The species possesses a well-defined lateral line system, which is crucial for detecting movement and vibrations in the water. Additionally, the presence of an adipose fin aids in stabilization while swimming, enhancing its maneuverability in various aquatic environments.
Behavior & temperament
The Short Ninespine Stickleback is primarily a benthic species, often found dwelling near the substrate of freshwater bodies. It exhibits a solitary to semi-social behavior, with individuals occasionally forming loose aggregations, particularly during breeding seasons. This species is known for its territoriality, especially males during the reproductive period, where they engage in displays of aggression to defend nesting sites. Breeding behavior is characterized by egg scattering, where females deposit eggs in nests constructed by males, who then guard the eggs until hatching. The temperament of this species can vary, with males displaying higher aggression levels during breeding, while females tend to be more docile.
Diet & feeding
In the wild, the Short Ninespine Stickleback is an omnivore, feeding on a varied diet that includes small invertebrates, algae, and detritus. In captivity, it requires a balanced diet that includes high-quality flake food, live or frozen foods such as daphnia and brine shrimp, and plant matter to ensure optimal health and coloration.
Behind the name
Pungitius (from Latin, meaning 'to prick' or 'to sting'); kaibarae (named in honor of the Japanese naturalist Kaibara Ekken).
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Short Ninespine Stickleback?
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