Burmese golden rasbora - Microdevario gatesi

Scientific name: Microdevario gatesi

Common name: Burmese golden rasbora

Family: Cyprinidae

Usual size in fish tanks: 2 - 3 cm (0.79 - 1.18 inch)

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Recommended pH range for the species: 6.2 - 7

Recommended water hardness (dGH): 5 - 13°N (89.29 - 232.14ppm)

0°C 32°F30°C 86°F

Recommended temperature: 22 - 27 °C (71.6 - 80.6°F)

The way how these fish reproduce: Spawning

Where the species comes from: South Asia

Temperament to its own species: peaceful

Temperament toward other fish species: peaceful

Usual place in the tank: Top levels

Overview

The Burmese Golden Rasbora (Microdevario gatesi) is a small, peaceful, and brightly colored fish ideal for nano and community aquariums. Native to the freshwater habitats of Southeast Asia, their shimmering golden hues and active schooling behavior make them a delightful addition to any tank.

Origin and Natural Habitat

These rasboras are native to the slow-moving freshwater streams and rivers of Burma (Myanmar), Malaysia, and Singapore. They thrive in environments rich in vegetation and subdued lighting.

Appearance and Size

Burmese Golden Rasboras display a beautiful golden-yellow coloration with hints of orange, especially in males. They are very small, typically reaching 2-3 cm (0.79-1.18 inches) in length, making them ideal for nano tanks.

Tank Requirements

Tank Size: A minimum of 20 liters (5 gallons) is recommended, though larger tanks are preferred to allow for schooling behavior.
Water Parameters:

pH: 6.2 - 7.0
Water Hardness: 5 - 13°N (89 - 232 ppm)
Temperature: 22 - 27°C (71.6 - 80.6°F)

Tank Setup: Provide a well-planted aquarium with floating plants to diffuse light and create a natural habitat. Include open spaces for swimming and ensure the water flow is gentle.

Temperament and Tank Mates

Burmese Golden Rasboras are peaceful and thrive in community tanks with other non-aggressive fish. Suitable tank mates include small tetras, guppies, Corydoras catfish, and other small rasboras like Harlequin Rasboras. Avoid housing them with larger or aggressive species, as their small size makes them vulnerable.

They are schooling fish and should be kept in groups of at least five to promote natural behavior and reduce stress.

Feeding and Diet

These rasboras are omnivorous and will readily accept a variety of foods:

High-quality flake food as a staple diet
Live or frozen foods such as micro worms, white worms, and brine shrimp to enhance coloration and health
Offer these treats at least twice a week for best results

Sexing

Males are more slender and display brighter coloration compared to the females, who have a slightly fuller body shape.

Breeding

Breeding Burmese Golden Rasboras is relatively straightforward with the right conditions:

Separate males and females for a couple of days before introducing them into the breeding tank.
Introduce the male into the tank the evening before spawning is expected.
Keep the water level low (about 5-6 inches or 12-15 cm) and add floating plants to diffuse light and aid egg scattering.
Once spawning is complete, remove the parents to prevent them from eating the eggs.
The eggs will hatch in 24-36 hours, and once the fry are free-swimming, feed them with infusoria until they are large enough for newly hatched brine shrimp.

Lifespan

With proper care, Burmese Golden Rasboras can live up to 8 years in captivity, making them a long-term commitment for nano tank enthusiasts.

Conclusion

The Burmese Golden Rasbora (Microdevario gatesi) is a vibrant and peaceful addition to any nano or community aquarium. Their shimmering colors and active schooling behavior make them a joy to watch. With the right environment, diet, and companions, these tiny fish will thrive and bring a touch of golden beauty to your tank.