Dwarf Spotted Rasbora

Environment

Minimum volume 40 L for a group of at least 10 individuals (ideally 15+). Densely planted aquarium with floating plants to diffuse light. Driftwood, Catappa leaves and moss to recreate natural biotope (Asian blackwater). Gentle filtration (avoid strong current), acidic water (pH 5–7) and soft (GH 1–10 °dGH). Temperature 24–28 °C. Dark substrate to enhance colors. Regular water changes (20% weekly) essential.

Feeding

Micro-predator: favor live or frozen artemia nauplii, micro-worms, daphnia, cyclops. Accepts quality flakes and micro-granules, but meaty food essential for health and reproduction. Feed twice daily in small amounts. Vary diet for optimal coloration and vitality.

Health & common diseases

Robust species but sensitive to sudden parameter variations. Common diseases: white spot (Ichthyophthirius) in case of thermal stress or overcrowding; fin rot if water quality degraded; velvet disease (Oodinium) favored by stress. Prevention: quarantine new arrivals, maintain stable parameters, rigorous hygiene, avoid overfeeding. Very sensitive to chemical treatments: use reduced doses.

Tips & tankmates

Strict shoaling fish: keep minimum 10 individuals, ideally 15+ for natural behavior and stress reduction. Excellent cohabitation with shrimp (Neocaridina, Caridina) and small snails. Avoid large fish or aggressive species. Breeding possible in specific aquarium with Java moss and very soft water. Respect the group: an isolated trio will be stressed and dull. Peaceful species perfect for Asian community nano-tank.

Sources

• Seriously Fish - Boraras maculatus
• Fishbase
• Atlas de l'aquarium d'eau douce, H. Baensch & R. Riehl