Chili Rasboras are the absolute gold standard for high-end aquascapes, Iwagumi layouts, and specialized nano desktop tanks. Because of their truly miniature size, they add a magnificent sense of scale to your aquascape without creating a heavy biological load or uprooting delicate flora.
They are exceptionally peaceful and stand as one of the safest choices to house alongside dwarf shrimp colonies. While standard community fish readily hunt and stress invertebrates, the tiny anatomy of the Chili Rasbora makes them completely harmless to adult dwarf shrimp, allowing them to co-exist in perfect biological harmony. They look absolutely mesmerizing when schooling in unison against a backdrop of dense green mosses, dark driftwood, and vibrant aquatic plants.
🐟 Fish Specifications & Water Parameters
Parameter | Specification | Technical Notes |
Scientific Name | Boraras brigittae | Pure genetic line selected for maximum solid ruby-red saturation |
Common Names | Chili Rasbora, Mosquito Rasbora | Extremely high-volume search terms with top-tier online buyer intent |
Maximum Size | 0.6 – 0.8 inches (1.5 – 2.0 cm) | True micro-fish size, ideal for small specialized nano ecosystems |
Diet | Omnivore / Micro-Predator | High-quality crushed flakes, micropellets, baby brine shrimp, and daphnia |
Behavior | Peaceful Schooling Fish | Must be kept in groups of 6 or more (10+ highly recommended) to ensure vibrant colors |
🛠️ Lighting, Water Parameters & Care Guide
Schooling Dynamics & Color Expression: Must be kept in numbers. The Chili Rasbora relies heavily on a school to feel secure. In larger groups, their stress levels drop entirely, and the natural interaction between males causes them to "flare" and showcase their most intense, electric crimson-red colors.
Lighting & Habitat Preferences: Thrives beautifully under full-spectrum LED fixtures, which make their neon red accents pop with incredible intensity. They heavily prefer well-planted aquariums, floating vegetation, and dark substrates, which replicate their natural blackwater environments.
Water Chemistry Parameters: Prefers soft, stable, and slightly acidic to neutral water with a pH range of 6.0 – 7.0, a gH of 1–5, and a stable temperature range of 20°C – 28°C (68°F – 82°F). Maintaining excellent water quality and stability is paramount for their long-term health.
Ideal Tankmates: Perfect for cohabiting with other ultra-peaceful nano species such as smaller micro-rasboras, pygmy corydoras, otocinclus, freshwater snails, and various species of dwarf shrimp. Avoid any large, fast, or predatory fish that could easily view them as prey.