Emerald Dwarf Rasbora – Microasbora erythromicron

Emerald Dwarf Rasbora (Microdevario erythromicron)

The Emerald Dwarf Rasbora (Microdevario erythromicron) is a charming and vibrant freshwater fish known for its iridescent emerald-green coloration and small size. This species is a favorite among aquarists for its striking appearance, peaceful nature, and active schooling behavior, making it an excellent choice for community tanks.

Description:

Common Name: Emerald Dwarf Rasbora

Scientific Name: Microdevario erythromicron

Family: Cyprinidae

Size: Up to 1.2 inches (3 cm)

Color: Shimmering emerald-green body with a metallic sheen, highlighted by a delicate, iridescent blue stripe along the body. The fish also features a subtle red spot near the base of the tail.

Native Region:

The Emerald Dwarf Rasbora is native to the freshwater streams and rivers of Myanmar (Burma). These habitats typically consist of slow-moving waters with clear conditions, soft substrate, and dense vegetation.

Aquarium Setup:

Tank Size: Minimum of 10 gallons (38 liters) for a small group

Water Parameters:

Temperature: 72-78F (22-26C)

pH: 6.0-7.5

Hardness: Soft to moderately hard water (2-12 dGH)

Substrate: Soft sand or fine gravel; a well-planted tank with plenty of hiding spots and open swimming areas

Diet: Omnivorous; feed a varied diet of high-quality micro-pellets, flakes, and live or frozen foods such as micro-worms, brine shrimp, and daphnia

Care Level:

Difficulty: Easy

Temperament: Peaceful and social; best kept in schools of 6 or more to exhibit natural schooling behavior and reduce stress

Lifespan: 3-5 years

Breeding: Egg-layer; breeding in captivity can be challenging and typically requires a separate breeding tank with soft, acidic water and specific conditions for spawning

Additional Tips:

Tank Mates: Ideal for community tanks with other small, peaceful species such as tetras, rasboras, and dwarf cichlids. Avoid larger or more aggressive fish that may intimidate the rasboras.

Behavior: Emerald Dwarf Rasboras are active and social, thriving in groups where they display natural schooling and foraging behaviors.

Water Quality: Maintain excellent water quality with regular water changes and proper filtration to keep the fish healthy and vibrant.