BLACK RUBY BARB (Pethia nigrofasciata)

Black Ruby Barb for Sale in Canada

The Black Ruby Barb (Pethia nigrofasciata) is a striking freshwater schooling fish known for its deep ruby-red coloration and bold black vertical barring. This elegant yet hardy barb is highly valued by aquarium hobbyists in Canada for its unique seasonal color changes, peaceful schooling behavior, and strong presence in planted community aquariums.Black Ruby Barb Canada

Native to cool, shaded forest streams in Sri Lanka, Black Ruby Barbs thrive in well-oxygenated, planted aquariums with stable water conditions. When kept in proper groups, males develop intense dark ruby to almost black coloration during breeding condition, creating a dramatic visual contrast that makes them a centerpiece species in freshwater aquascapes.

Why Choose Black Ruby Barbs?

Black Ruby Barbs offer a rare combination of rich coloration, activity, and adaptability.

Dramatic Ruby and Black Color Transformation

One of the most fascinating traits of Pethia nigrofasciata is the color change between sexes and breeding condition. Males develop deep ruby-red bodies with strong black vertical bands, while females remain lighter gold to brownish with subtle markings.

During peak condition, males may darken significantly, appearing almost velvety black with red highlights—one of the most dramatic transformations in the barb family.

Active Yet Peaceful Schooling Fish

Black Ruby Barbs are active swimmers that prefer to stay in groups. Despite their energy, they are generally peaceful when kept in proper schools and are suitable for community aquariums.

A group of 6–10 or more encourages natural behavior, reduces stress, and enhances coloration.

Ideal Tank Mates for Black Ruby Barbs

Black Ruby Barbs are compatible with many peaceful, similarly sized freshwater species.

Compatible Tank Mates

• Corydoras
• Harlequin Rasboras
• Cherry Barbs
• Neon Tetras
• Glowlight Tetras
• Rainbowfish (smaller species)
• Bristlenose Plecos
• Otocinclus

Avoid slow-moving or long-finned fish that may be stressed by their activity.

Ideal Aquarium Setup

Black Ruby Barbs thrive in natural-style, planted aquariums with stable conditions.

Recommended Tank Conditions

• Temperature: 72°F – 80°F (22°C – 27°C)
• pH: 6.0 – 7.5
• Soft to moderately hard water
• Moderate water flow
• Heavily planted aquarium preferred
• Minimum group size: 6–10 fish

Adding driftwood and shaded areas enhances their natural coloration and reduces stress.

Feeding Requirements

Black Ruby Barbs are omnivores and easy to feed in captivity.

Recommended Foods

• High-quality flakes
• Micro pellets
• Frozen bloodworms
• Brine shrimp
• Daphnia
• Vegetable-based foods
• Freeze-dried foods

A varied diet improves coloration, especially red and black breeding tones.

Behavior and Schooling

Black Ruby Barbs are social fish that show their best behavior in groups. Males often display subtle dominance interactions, but these are typically non-aggressive when space and schooling size are adequate.

Their constant movement and color changes make them a dynamic addition to community aquariums.

Why Buy Black Ruby Barbs from Monster Aquarium Canada?

Monster Aquarium Canada provides healthy, high-quality Black Ruby Barbs selected for coloration, activity, and overall condition. Each fish is carefully acclimated to ensure safe introduction into home aquariums across Canada.

Whether you’re building a planted aquascape, Sri Lankan biotope, or vibrant community tank, Black Ruby Barbs offer bold color, strong schooling behavior, and excellent hardiness.

Frequently Asked Questions

How big do Black Ruby Barbs grow?

They typically reach about 2 inches (5 cm) in length.

How many should be kept together?

A group of at least 6–10 is recommended for best coloration and behavior.

Are Black Ruby Barbs aggressive?

They are generally peaceful but can be active; proper schooling reduces any fin-nipping tendencies.

Can they live in planted tanks?

Yes. They thrive in planted aquariums with open swimming space.

Do males and females look different?

Yes. Males become deep ruby-red to black with bold markings, while females remain lighter gold-brown.