Black Line Rasbora

Black Line Rasbora (Rasbora Borapetensis)

The Black Line Rasbora, also known as Redtail Rasbora, is a small, peaceful freshwater fish native to Southeast Asia. They exhibit a stunning silver body with an iridescent black stripe running from their snout to their caudal fin.

This eye-catching fish reaches an adult size of 2 inches and is best kept in schools of at least 6-8 individuals, which can help promote natural shoaling behavior. Black Line Rasboras are compatible with a variety of similarly sized, peaceful tank mates, such as other small rasboras, tetras, and dwarf cichlids. Their peaceful nature makes them an excellent choice for community aquariums.

These omnivorous fish enjoy a varied diet that includes high-quality flake or pellet foods, as well as live or frozen foods like brine shrimp, daphnia, and bloodworms. They will also appreciate the occasional offering of vegetable matter, such as blanched spinach or zucchini.

To create a suitable environment for Black Line Rasboras, provide a well-planted aquarium with a soft sandy or fine gravel substrate, driftwood, and rocks for hiding places. These fish prefer dimly lit conditions, which can be achieved through floating plants or subdued lighting.

A minimum tank size of 10 gallons is recommended, with larger tanks being more suitable for larger schools. The ideal water parameters are a pH of 6.0-7.0, hardness of 5-12 dGH, and a temperature of 73-79°F (23-26°C).

Additionally, a securely fitted lid is essential to prevent escape, as the Black Line Rasbora, like most rasboras, is an adept jumper.