Emerald Dwarf Rasbora

The Emerald Dwarf Rasbora (Danio erythromicron) is a tiny, peaceful nano fish native to Inle Lake in Myanmar. Despite its common name, it is actually a species of Danio rather than a true rasbora. It grows up to 0.8–1 inch long and features striking emerald-green and blue vertical stripes with orange-red fins.

Quick Facts & Specifications

• Scientific Name: Danio erythromicron (formerly Microrasbora erythromicron)
• Adult Size: 0.8–1 inch (2–2.5 cm)
• Lifespan: 3–5 years
• Temperament: Peaceful, timid, and slightly shy
• Minimum Tank Size: 10 gallons
• Social Behavior: Best kept in groups of 8 or more to reduce shyness

Tank Requirements & Water Parameters

• Water Temperature: 68–79°F (20–26°C)
• pH Range: 6.5–7.5
• Environment: Densely planted aquariums with driftwood, rocks, and gentle filtration mimicking slow-moving waters.
• Tank Mates: Safe with peaceful nano fish, snails, and adult dwarf shrimp.

Diet

• Type: Omnivore
• Preferred Foods: High-quality micro-pellets, crushed flakes, and live or frozen foods like baby brine shrimp and daphnia.