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The Black Ruby Barb (Pethia nigrofasciatus) is a powerhouse addition to any freshwater community or planted aquarium, blending high-impact aesthetics with essential utility. Featuring a deep, ruby-red coloration that intensifies into a near-black charcoal toward the head in dominant males, this active schooler is a master of the "dither fish" era of fish keeping—serving as a natural biological indicator of a stable, well-oxygenated environment. It is a dedicated middle-to-lower water dweller, making it a functional cornerstone of a healthy freshwater ecosystem.
This hardy barb thrives in established systems with dense vegetation and plenty of open swimming space. While generally peaceful and plant-safe, its social nature means it is best kept in schools of six or more to ensure it feels secure and displays its most dramatic breeding colors. To ensure long-term health, provide a varied diet of high-quality flakes, micro-pellets, and occasional treats of frozen bloodworms or brine shrimp. Ensure your aquarium features a darker substrate and subdued lighting, as these conditions help the fish maintain their deep, velvety pigmentation.
Note: Images shown are stock images and not the actual fish you will receive.
Care Level: Easy
Temperament: Peaceful
Minimum Tank Size: 20–30 Gallons
Diet: Omnivore
Plant Compatible: Yes
Max Size: 2.5 Inches
Water Conditions: 72 to 79°F, KH 5 to 12, pH 6.0 to 7.0
The Black Ruby Barb is a strategic choice for hobbyists looking for "dramatic contrast" without the fin-nipping tendencies often associated with other barb species. Its constant, playful interaction within a school adds a layer of kinetic energy to the bottom half of the tank that few other mid-sized cyprinids can match. In the context of modern aquascaping, it is widely considered an essential "accent fish" for highlighting the textures of driftwood and stone. For maximum success, provide an environment with moderate water flow and stable water parameters to facilitate its natural vitality and social hierarchy.
We’ve dialed in the logistics for national Overnight Delivery to ensure your livestock arrives in peak condition. Every order is packed using professional-grade insulation and climate-contingent heat or ice packs, designed to maintain stable temperatures throughout the journey. We handle the technical side of the move so you can focus on the acclimation. Our protocol is built on getting these fish from the facility to your tank with zero compromise on health or vitality.
The Black Ruby Barb (Pethia nigrofasciatus) is a powerhouse addition to any freshwater community or planted aquarium, blending high-impact aesthetics with essential utility. Featuring a deep, ruby-red coloration that intensifies into a near-black charcoal toward the head in dominant males, this active schooler is a master of the "dither fish" era of fish keeping—serving as a natural biological indicator of a stable, well-oxygenated environment. It is a dedicated middle-to-lower water dweller, making it a functional cornerstone of a healthy freshwater ecosystem.
This hardy barb thrives in established systems with dense vegetation and plenty of open swimming space. While generally peaceful and plant-safe, its social nature means it is best kept in schools of six or more to ensure it feels secure and displays its most dramatic breeding colors. To ensure long-term health, provide a varied diet of high-quality flakes, micro-pellets, and occasional treats of frozen bloodworms or brine shrimp. Ensure your aquarium features a darker substrate and subdued lighting, as these conditions help the fish maintain their deep, velvety pigmentation.
Note: Images shown are stock images and not the actual fish you will receive.
Care Level: Easy
Temperament: Peaceful
Minimum Tank Size: 20–30 Gallons
Diet: Omnivore
Plant Compatible: Yes
Max Size: 2.5 Inches
Water Conditions: 72 to 79°F, KH 5 to 12, pH 6.0 to 7.0
The Black Ruby Barb is a strategic choice for hobbyists looking for "dramatic contrast" without the fin-nipping tendencies often associated with other barb species. Its constant, playful interaction within a school adds a layer of kinetic energy to the bottom half of the tank that few other mid-sized cyprinids can match. In the context of modern aquascaping, it is widely considered an essential "accent fish" for highlighting the textures of driftwood and stone. For maximum success, provide an environment with moderate water flow and stable water parameters to facilitate its natural vitality and social hierarchy.
We’ve dialed in the logistics for national Overnight Delivery to ensure your livestock arrives in peak condition. Every order is packed using professional-grade insulation and climate-contingent heat or ice packs, designed to maintain stable temperatures throughout the journey. We handle the technical side of the move so you can focus on the acclimation. Our protocol is built on getting these fish from the facility to your tank with zero compromise on health or vitality.
