Black Ruby Barb (Pethia nigrofasciata) in aquarium
๐ŸŒฟ Freshwater ยท Tropical

Black Ruby Barb

Pethia nigrofasciata โ€” Cyprinidae
๐Ÿ“ Size:ย 4-6
โณ Lifespan:ย 3-5
โญ Care level:ย Beginner

Overview

The Black Ruby Barb is a vibrant, active species suitable for beginners. It requires a spacious tank and a school of its own kind to thrive. Its striking colors and lively nature make it a popular choice.

Quick fact: Pethia nigrofasciata belongs to the family Cyprinidae. Care level: beginner.

Scientific Classification

RankClassification
FamilyCyprinidae
GenusPethia
SpeciesPethia nigrofasciata
Water typefreshwater

Natural Habitat

Native to the rivers of the Mekong Delta in Vietnam, this barb thrives in slow-moving waters with dense vegetation.

Appearance

This barb features a sleek, black body with a prominent silver stripe and vivid red fins.

Coloration: black body with silver stripe, red fins

Behavior

It is known for its active and curious nature, and is best kept in groups to prevent stress. It is compatible with most peaceful species.

TraitValue
Temperamentactive community fish
SchoolingYes
Activity levelhigh
Important: occasionally nippy, so keep with compatible tankmates

Water Requirements

ParameterIdeal RangeNotes
Temperature22โ€“26ยฐC (72โ€“79ยฐF)Use a reliable adjustable heater
pH6.5โ€“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 known for their bold and striking coloration.
  • They are often found in groups of 10-20 in the wild.
  • They are a popular choice for breeders due to their coloration and behavior.

๐Ÿ“‹ Full Care Guide

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

Read Black Ruby Barb 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.