Crossbanded dwarf rasbora

Introduction

The Crossbanded dwarf rasbora (Danio erythromicron), also known as the Cross-striped dwarf rasbora, is a captivating freshwater fish cherished by aquarists for its vibrant coloration and peaceful demeanor. Native to Myanmar's Lake Inle, this diminutive species boasts striking dark blue crossbands over a silvery body, complemented by reddish fins and head. Its manageable size and tranquil nature make it an excellent choice for both novice and intermediate fishkeepers seeking to add a splash of color to their aquariums.

Care and Environment

Providing optimal care for the Crossbanded dwarf rasbora involves replicating its natural habitat and maintaining stable water conditions.

What is the minimum tank size required for a Crossbanded dwarf rasbora?

A minimum tank size of 25 liters is recommended to house a small group of these fish comfortably.

What are the ideal water parameters for this species?

They thrive in temperatures between 22°C and 25°C, with a pH range of 6.5 to 8, and water hardness (GH) between 10° and 25° dH.

How should the tank be set up to mimic their natural environment?

Incorporate dense vegetation, such as fine-leaved plants like Cabomba or Milfoil, to provide ample hiding spots. Adding driftwood and leaf litter can help replicate the tannin-rich waters of their native habitat. A dark, sandy substrate enhances their coloration and offers a natural feel.

Filtration should be gentle to avoid strong currents, as these fish prefer slow-moving waters. An air-powered sponge filter or peat filtration can be effective. Subdued lighting, possibly achieved with floating plants, will make the rasboras feel more secure and encourage natural behaviors.

Feeding should consist of a varied diet, including high-quality micro pellets, fine flake foods, and live or frozen options like brine shrimp, daphnia, and cyclops. Regular feedings of live or frozen food will help maintain their vibrant coloration and promote health.

Be mindful of their sensitivity to water quality. Regular water changes and monitoring of parameters are essential to prevent stress and disease.

Origin and Habitat

The Crossbanded dwarf rasbora is endemic to Lake Inle in Myanmar. This high-altitude lake features clear, shallow waters with dense aquatic vegetation. The lake's environment is characterized by soft, slightly acidic to neutral water, with temperatures typically ranging from 22°C to 25°C. The substrate is often composed of fine sand and silt, providing an ideal setting for this species.

Temperament and Compatibility

Crossbanded dwarf rasboras are peaceful, shoaling fish that thrive in groups of at least 8 to 10 individuals.

Can they be kept with other fish species?

Yes, they can coexist with other small, peaceful fish such as Harlequin Rasboras (Trigonostigma heteromorpha) and Espe’s Rasboras (Trigonostigma espei).

Are there any species to avoid as tank mates?

Avoid housing them with larger or more aggressive species, as the rasboras' small size makes them vulnerable to intimidation or predation.

How do they behave in a community tank?

In a well-planted community tank with suitable tank mates, they exhibit active and social behaviors, often swimming in the middle areas of the tank.

Interesting Facts

Crossbanded dwarf rasboras are continuous spawners, depositing eggs among plants over several days.

How can you encourage breeding in captivity?

Providing a densely planted tank with fine-leaved plants or spawning mops, along with conditioning the parents on live or frozen foods, can encourage spawning.

Do they exhibit any unique behaviors?

Dominant males may establish temporary territories during breeding, displaying vibrant colors to attract females.

What is their typical lifespan?

With proper care, they can live between 3 to 5 years in captivity.

Sources

All information in this article has been gathered from the following reputable sources:

• despertarmagia.com
• madaquariums.com.au
• animal-world.com