Red Line Rasbora Care Guide
Rasbora pauciperforata · Freshwater Fish
What Red Line Rasbora look like
The Red Line Rasbora (Rasbora pauciperforata) exhibits a sleek, elongated, and laterally compressed body, reaching a maximum adult size of approximately 2 inches (5 cm). The species displays sexual dimorphism, with males typically exhibiting a more vibrant coloration and a slightly more slender body compared to the females, which are generally fuller-bodied, especially when gravid. A distinctive feature of this species is the brilliant, glowing neon-red to orange horizontal stripe that runs from the head to the caudal fin, providing a striking contrast against its silvery body. The dorsal fin is small and triangular, while the anal fin is elongated and pointed, contributing to its streamlined appearance. The presence of a lateral line system is noted, aiding in the detection of water movements, which is crucial for their schooling behavior. Additionally, the species possesses a small mouth with fine, comb-like teeth adapted for grazing on algae and small invertebrates, enhancing its omnivorous diet.
Behavior & temperament
The Red Line Rasbora is a highly social species, typically found in small to medium-sized schools, which provides safety in numbers against predators. They inhabit the mid to upper water column in their native Southeast Asian streams and rivers, often dwelling near vegetation and submerged structures. Breeding occurs in a communal setting where females scatter eggs among plants, making them egg scatterers rather than mouthbrooders. Their temperament is generally peaceful, making them suitable for community tanks, although they can exhibit slight territoriality during breeding periods. The species is active and displays a lively demeanor, often engaging in darting movements within their school.
Diet & feeding
In the wild, the Red Line Rasbora is an omnivore, feeding on a varied diet that includes small invertebrates, zooplankton, and algae. In captivity, they thrive on high-quality flake foods, micro-pellets, and occasional live or frozen foods such as daphnia and brine shrimp to ensure a balanced diet.
Behind the name
Rasbora (from the Malay word for fish); pauciperforata (from Latin, meaning 'few perforations', likely referring to the minimal lateral line pores).
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Red Line Rasbora?
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