Description
Chili Rasbora – Boraras brigittae
Introduction:
The Chili Rasbora (Boraras brigittae), known for its vibrant red and black coloring, is a popular choice among nano aquarium enthusiasts. This tiny species, typically reaching just 0.6 to 0.8 inches (1.5 to 2 cm) in length, brings a lively splash of color to small setups. Their peaceful nature and shoaling behavior make them ideal for aquarists looking to create a serene yet striking visual display in their aquariums.
1. Natural Habitat and Behavior
Native to the slow-moving blackwater streams of Borneo, the Chili Rasbora is accustomed to tannin-rich waters with a soft, acidic pH and abundant plant cover. In the wild, they live in groups and tend to school closely, moving gracefully through the vegetation. In the aquarium, they exhibit similar behavior, preferring to stay in the mid and upper water columns. These rasboras are quite shy on their own but display a more outgoing nature when kept in groups.
2. Aquarium Setup
A 5-gallon tank can comfortably house a small school of Chili Rasboras, but larger tanks are preferred for groups. For a natural setup, include fine-leaved plants such as Java Moss, Anubias, or floating plants to provide both cover and shading. Use a dark substrate and consider adding driftwood or leaf litter to release beneficial tannins into the water, mimicking their natural environment. Ideal water conditions include a pH of 4.0-6.5, soft water, and a temperature range of 72-82°F (22-28°C). Low to moderate lighting enhances their coloration and helps reduce stress.
3. Diet and Feeding
Chili Rasboras are micro-predators, and in an aquarium, they accept a variety of foods. Feed them high-quality micro-pellets, crushed flakes, and live or frozen foods such as daphnia, baby brine shrimp, and microworms. Due to their small size, ensure food particles are tiny enough to fit in their mouths. They do best with small feedings multiple times a day.
4. Compatibility with Other Fish
As a peaceful species, Chili Rasboras are well-suited for community tanks with other small, non-aggressive fish. Ideal tankmates include other micro-rasboras, small tetras, dwarf corydoras, and shrimp species like Amano or Cherry Shrimp. Avoid housing them with larger or more aggressive fish, as Chili Rasboras can be intimidated or outcompeted for food.
5. Common Challenges and Tips
- Sensitive to Water Quality: Chili Rasboras are sensitive to changes in water parameters, so regular water changes and consistent maintenance are essential.
- Schooling Behavior: For their well-being, it’s best to keep them in schools of 8-10 or more. A well-sized school will help reduce stress and bring out their natural behavior and vibrant color.
- Tank Cover: Due to their shy nature, adequate plant cover is crucial. Floating plants or dimmed lighting also help create a comfortable environment for them.
Conclusion
The Chili Rasbora (Boraras brigittae) is a perfect choice for nano tanks, offering a splash of color and peaceful schooling behavior. With their tiny size, brilliant red hue, and compatibility with other small, peaceful fish, Chili Rasboras make a delightful addition to well-planted tanks. By providing them with the right water conditions, compatible tank mates, and a varied diet, you’ll enjoy the vibrant beauty of these rasboras for years to come.
