The Chili Rasbora (Boraras brigittae), often referred to as the "Micro Rasbora" or "Boraras Brigittae," is a captivating and diminutive fish species that has become a favorite among aquarium enthusiasts. Originating from the slow-flowing waters of Southeast Asia, particularly in the peat swamps of Thailand and Malaysia, the Chili Rasbora has gained popularity for its vibrant colors, peaceful demeanor, and manageable size, making it an ideal addition to nano aquariums and community tanks.

Appearance:

Measuring a mere 1 to 1.5 centimeters in length, the Chili Rasbora is among the smallest species in the Rasbora family. Despite its diminutive size, this fish boasts striking and eye-catching colors. Its body is predominantly red-orange, resembling the vibrant hue of chili peppers, hence its common name. The coloration intensifies when the fish is in optimal health and kept in a well-maintained aquarium environment.

The Chili Rasbora features a sleek, streamlined body with a slightly forked tail fin. Its fins are translucent, adding to its delicate appearance. The dorsal fin displays a distinctive black band, further enhancing the overall aesthetics of this miniature marvel.

Habitat and Tank Requirements:

In its natural habitat, the Chili Rasbora thrives in slow-moving waters with abundant vegetation. To replicate its native environment in captivity, aquarium enthusiasts should consider setting up a planted tank with soft, slightly acidic water. The addition of dark substrate and dim lighting helps mimic the peat swamp conditions where these fish are commonly found.

A nano aquarium of at least 5 gallons (19 liters) is suitable for a small school of Chili Rasboras. It's essential to maintain stable water parameters, with a temperature range of 74-82°F (23-28°C), a pH level between 5.5 and 7.0, and very soft to moderately hard water.

Behavior and Compatibility:

Chili Rasboras are known for their peaceful and social nature. They thrive in schools of at least six individuals, and observing their interactions within the group can be a delightful experience. Due to their small size, they are an excellent choice for community tanks with other small, non-aggressive fish species such as small tetras, dwarf shrimp, or peaceful bottom-dwelling species.

Feeding:

These micro-sized fish are omnivores and accept a variety of foods. In captivity, a well-balanced diet should include high-quality micro pellets, flakes, and small live or frozen foods such as brine shrimp or daphnia. Regular feeding and a varied diet contribute to their vibrant colors and overall health.

Breeding:

Chili Rasboras are relatively easy to breed in a well-maintained aquarium. To encourage spawning, provide a dense planting of fine-leaved plants like java moss or spawning mops. A separate breeding tank may be set up for this purpose. The water temperature should be slightly elevated to around 80-82°F (27-28°C).

Once the female lays eggs, the male fertilizes them, and the eggs will adhere to the plants. It is advisable to remove the adults from the breeding tank to prevent them from consuming the eggs or fry. Hatching occurs within 24 to 48 hours, and the fry can be fed infusoria or liquid fry food until they are large enough to consume micro-sized live or prepared foods.

The Chili Rasbora, with its captivating colors and diminutive size, has become a cherished addition to the aquarium hobby. Its manageable care requirements, peaceful demeanor, and suitability for nano tanks make it an ideal choice for both beginner and experienced aquarists alike. Watching a school of Chili Rasboras gracefully navigate a well-planted aquarium is a testament to the beauty that can be found in the smallest inhabitants of the aquatic world.