Introduction

The Chili Rasbora (Boraras brigittae) is a tiny yet vibrant freshwater fish, ideal for nano aquariums. Known for their striking red coloration and peaceful nature, these fish are a favorite among aquarists. This guide will cover everything you need to know about Chili Rasbora care, including the ideal Chili Rasbora tank setup, diet, breeding, and water parameters.

Quick Facts

Common Name: Chili Rasbora
Scientific Name: Boraras brigittae
Family: Cyprinidae
Lifespan: 4-6 years
Size: 0.6-0.8 inches (1.5-2 cm)
Tank Size: Minimum 5 gallons
Temperament: Peaceful, shoaling fish
Diet: Omnivore
Water Parameters: pH 4.0-7.0, Temp 72-82°F

Natural Habitat & Chili Rasbora Behavior

The Chili Rasbora originates from the blackwater streams of Borneo, where they thrive in tannin-rich waters filled with leaf litter and dense vegetation. These fish prefer calm environments with minimal water flow.

In aquariums, Chili Rasboras are highly active shoaling fish and should be kept in groups of at least 8-10 to display their best coloration and natural behaviors. They are peaceful and make excellent companions in well-planted nano tanks.

Chili Rasbora Tank Setup & Requirements

Tank Size & Setup

• Minimum Tank Size: 5 gallons (for a small group)
• Best Setup: A heavily planted tank with floating plants and soft, dark substrate
• Substrate: Fine sand or soft gravel to mimic natural conditions

Chili Rasbora Water Parameters

• Temperature: 72-82°F (22-28°C)
• pH Level: 4.0-7.0
• Water Hardness: 1-6 dGH
• Filtration: Sponge filters or low-flow filters to prevent strong currents
• Lighting: Low to moderate lighting to enhance coloration

Chili Rasbora Tank Mates & Compatibility

Chili Rasboras are peaceful and thrive in community aquariums with other small, non-aggressive fish. Ideal Chili Rasbora tank mates include:

• Compatible Tank Mates: Ember Tetras, Celestial Pearl Danios, Pygmy Corydoras, Sparkling Gouramis, Shrimp
• Avoid: Large or aggressive fish (Cichlids, Barbs, Betta Fish)

Chili Rasbora Diet & Feeding

What They Eat in the Wild

The Chili Rasbora diet consists of tiny invertebrates, insect larvae, and zooplankton found in their native waters.

Best Foods in Captivity

• Staple Diet: High-quality micro pellets and crushed flakes
• Treats: Live or frozen foods (baby brine shrimp, daphnia, microworms)
• Feeding Frequency: 2-3 times per day in very small portions

Chili Rasbora Breeding

Breeding Tank Setup

• Tank Size: 5-10 gallons (separate breeding tank recommended)
• Water Conditions: Slightly acidic, heavily planted environment
• Temperature: 78-82°F (26-28°C)
• Decor: Java moss or fine-leaved plants for egg deposition

Breeding Process

1. Spawning Behavior – Males display bright red colors and chase females.
2. Egg-Laying & Fertilization – Females scatter eggs among plants, with no parental care.
3. Egg & Fry Care – Separate adults from eggs to prevent predation.

Fry Care

• First Foods: Infusoria or powdered fry food
• Growth Stages: Introduce baby brine shrimp as they develop
• Tank Conditions: Stable, clean water is crucial for fry survival

Common Health Issues & Prevention

Common Diseases

Prevention Tips

• Maintain Clean Water: Perform regular water changes (25% weekly)
• Quarantine New Fish: Prevent disease spread
• Avoid Overfeeding: Reduces waste buildup and maintains water quality

FAQs

Q: How many Chili Rasboras should be kept together?
A: At least 8-10 to promote natural shoaling behavior and reduce stress.

Q: Can Chili Rasboras live in a community tank?
A: Yes, they do well with other peaceful nano fish in well-planted setups.

Q: Do Chili Rasboras need an air pump?
A: No, but gentle filtration and good oxygenation help maintain ideal conditions.

Conclusion

The Chili Rasbora is a visually striking and easy-to-care-for nano fish, perfect for planted aquariums. By ensuring the right Chili Rasbora tank setup, diet, and water parameters, you can enjoy their vibrant colors and active nature for years to come.