Scissortail Rasbora (Rasbora trilineata) in aquarium
๐ŸŒฟ Freshwater ยท Tropical

Scissortail Rasbora

Rasbora trilineata โ€” Cyprinidae
๐Ÿ“ Size:ย 3-5
โณ Lifespan:ย 3-4
โญ Care level:ย Beginner

Overview

The Scissortail Rasbora is a popular freshwater fish known for its vibrant coloration and peaceful demeanor. They are ideal for community tanks due to their low aggression level and moderate activity. These fish thrive in well-maintained tanks with a variety of swimming space and hiding spots. Proper water parameters are essential for their health.

Quick fact: Rasbora trilineata belongs to the family Cyprinidae. Care level: beginner.

Scientific Classification

RankClassification
FamilyCyprinidae
GenusRasbora
SpeciesRasbora trilineata
Water typefreshwater

Natural Habitat

Native to the Mekong and Chao Phraya basins in Southeast Asia, this species is found in slow-moving streams and rice paddies.

Appearance

The Scissortail Rasbora is characterized by its slender body, distinctive black band along the middle, and bright red fins. They are silvery in color with a silvery blue sheen.

Coloration: silver with a distinct black band along the middle and red fins

Behavior

While not a schooling fish, they do enjoy the company of their own kind and can be seen swimming in groups. They are generally peaceful but may be shy in new environments.

TraitValue
Temperamentpeaceful community fish
SchoolingNo
Activity levelmoderate
Important: occasionally shy and may hide when first introduced

Water Requirements

ParameterIdeal RangeNotes
Temperature22โ€“26ยฐC (72โ€“79ยฐF)Use a reliable adjustable heater
pH6โ€“7.5Avoid sudden swings
Hardness (GH)5-15 dGH dGHSoft to moderately hard
Ammonia0 ppmAny detectable ammonia signals a problem
Nitrite0 ppmToxic even at low levels
Nitrate<20 ppmManage through regular partial water changes
Min. tank20L (5 gal)Larger tanks are easier to keep stable
Important: Always dechlorinate tap water before adding it to the tank. Chlorine and chloramines damage a fish's gills and reduce life expectancy.

Interesting Facts

  • They are a popular choice for betta tanks due to their peaceful nature and bright colors.
  • Their name comes from the distinctive black band that resembles a pair of scissors.
  • They are known to be sensitive to water quality issues.

๐Ÿ“‹ Full Care Guide

Ready to set up a tank for your Scissortail Rasbora? The complete care guide covers tank setup, feeding schedule, common diseases, tank mates, and breeding.

Read Scissortail Rasbora Care Guide โ†’

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Editorial review

This species profile was reviewed for biological accuracy and practical aquarium care guidance. For suspected illness or disease, test your water parameters first and consult an aquatic veterinarian if symptoms persist.