Cross-striped Dwarf Rasbora — a Cyprinidae from South & Southeast Asia, hardy, active mid-water fish; never stop moving. Reaches 2.3–3.4 cm; tight schooler; the more the livelier. 18–24 °C.
Care parameters
Water temperature
18–24 °C
pH
6–8
GH hardness
5–19 dGH
Adult length
2.3–3.4 cm
Minimum tank
25 L
Water layer
Active throughout the water column
Difficulty
Moderate
Temperament
Hardy, active mid-water fish; never stop moving
Origin
South & Southeast Asia
Species overview
From the waters of South & Southeast Asia comes Danio erythromicron, a member of the family Cyprinidae. A restless micropredator of the surface film, evolved for open, sunlit water. It uses the whole water column. Adults reach 2.3–3.4 cm. Tight schooler; the more the livelier. Generous swimming room, a big school and clean water cover nearly all of its care. Maintain 18–24 °C at pH 6–8. Water quality and diet matter more than décor.
Native biotope
Habitat
Clear streams and rivers over gravel
Flow
Moderate, well-oxygenated current
Dissolved O₂
Appreciates well-oxygenated water
Aquascape & hardware
Substrate
Fine gravel and sand
Hardscape
Water-worn stones and driftwood
Plants
Hardy rooted plants along the margins
Temperament, diet & tankmates
Schooling
Tight schooler; the more the livelier
Diet
Eager eater; small frequent feeds suit its pace
Recommended tankmates
Other danios and small rasboras — Form a fast, peaceful upper-water school