Black Ruby Barb (Pethia nigrofasciata)
The Black Ruby Barb is a striking freshwater schooling fish admired for its deep ruby-red coloration, bold black markings, and active personality. Native to the shaded forest streams of Sri Lanka, this peaceful barb develops its most vibrant colors in well-maintained aquariums with subdued lighting, dark substrate, and lush aquatic plants. Mature males become especially impressive during breeding displays, exhibiting rich crimson hues that make them a standout in any community aquarium.
Black Ruby Barbs are energetic, social fish that thrive in groups of six or more. Keeping them in schools encourages natural behavior, reduces stress, and enhances their vibrant coloration. They are excellent companions for other peaceful community fish such as tetras, rasboras, danios, Corydoras, and rainbowfish. A planted aquarium with driftwood, open swimming space, and gentle water flow closely mimics their natural habitat and helps them feel secure.
These omnivores readily accept a wide variety of foods, including high-quality flakes, micro pellets, frozen bloodworms, brine shrimp, daphnia, and vegetable-based foods. A varied diet helps maintain their vivid coloration, strong immune system, and overall health.
The Black Ruby Barb is a hardy and rewarding species that adapts well to established freshwater aquariums. While generally peaceful, they may occasionally nip fins if kept in groups that are too small, making proper schooling important for the best behavior.
Scientific Name: Pethia nigrofasciata
Common Name: Black Ruby Barb
Care Level: Easy
Temperament: Peaceful
Diet: Omnivore
Adult Size: Up to 2.5 Inches
Minimum Tank Size: 20 Gallons
Origin: Sri Lanka
If you're looking for a colorful, active schooling fish that brings both beauty and movement to a planted community aquarium, the Black Ruby Barb is an outstanding choice. Its rich ruby coloration, peaceful temperament, and hardy nature make it a favorite among freshwater aquarium enthusiasts.
