Mosquito Rasbora: Fish Species Profile

Characteristics

• Scientific Name: Boraras brigittae
• Family: Cyprinidae
• Origin: South West Borneo, Indonesia
• Social Behavior: Peaceful, schooling fish
• Tank Level: Middle to upper regions
• Minimum Tank Size: 5 gallons
• Diet: Omnivore
• Breeding Method: Egg layer
• Care Level: Intermediate
• Preferred pH Range: 4.0 to 7.0
• Water Hardness: 1 to 2 dGH
• Temperature Range: 68 to 82°F (20 to 28°C)

Origin and Distribution

Mosquito rasboras are native to the slow-moving blackwater streams and pools of South West Borneo, Indonesia. These environments are characterized by soft, acidic waters rich in tannins from decaying organic matter.

Colors and Markings

These diminutive fish exhibit a vibrant red hue along their bodies, complemented by a prominent horizontal black stripe. Males typically display more intense coloration than females, especially during breeding periods.

Tankmates

Due to their peaceful nature and small size, mosquito rasboras are best kept with similarly sized, non-aggressive species. Suitable tankmates include:

• Small tetras
• Dwarf gouramis
• Pygmy corydoras
• Dwarf shrimp

Avoid housing them with larger or aggressive fish that may view them as prey.

Care

To replicate their natural habitat, provide a well-planted aquarium with subdued lighting and gentle water flow. Incorporating driftwood and leaf litter can help achieve the desired water conditions. Regular monitoring and maintenance of water parameters are crucial, as mosquito rasboras are sensitive to fluctuations.

Recommended water conditions:

• pH: 4.0 to 7.0
• Hardness: 1 to 2 dGH
• Temperature: 68 to 82°F (20 to 28°C)

Diet and Feeding

Mosquito rasboras are omnivorous and thrive on a varied diet. Offer high-quality micro-pellets, finely crushed flakes, and live or frozen foods such as daphnia, brine shrimp, and micro-worms. Ensure the food particles are appropriately sized for their small mouths.

Gender Differences

Males are generally more slender and exhibit brighter red coloration compared to the slightly larger and rounder females. During breeding, males’ colors become even more pronounced.

Breeding

Breeding mosquito rasboras in captivity is feasible with proper conditions. Set up a separate breeding tank with soft, acidic water and a temperature around 78°F (26°C). Provide fine-leaved plants or spawning mops for egg deposition. After spawning, remove the adults to prevent egg predation. Eggs typically hatch within 24 to 36 hours, and fry can be fed infusoria or commercially available fry food.

Further Research

For more information on nano fish species and their care, consider exploring profiles on celestial pearl danios, ember tetras, and pygmy corydoras.

FAQ

How many mosquito rasboras should I keep together? It’s recommended to keep them in groups of at least six to promote natural schooling behavior and reduce stress.

Are mosquito rasboras suitable for beginners? While they are relatively hardy, their sensitivity to water parameter fluctuations makes them more suitable for aquarists with some experience.

Can mosquito rasboras live with betta fish? Due to their small size, they may be at risk of being perceived as prey by bettas. It’s advisable to avoid this combination.

This profile offers a comprehensive overview of mosquito rasboras, providing essential information for their care and maintenance in a home aquarium.